The top 50 animated films of all time (Rev. 2012a)

This list ranks the 50 animated films with the highest scores according to the methodology listed below.

Methodology:
I searched on Google for "best animated films" (without quotes). I looked at all the lists I could find in the first 30 pages of results and selected the ones that were

(i) reliable, i.e. from a well-known entertainment website, film critic society, etc.
(ii) inclusive, i.e. not restricted to just American, Disney, etc. films
(iii) recent, i.e. from 2008 or later (this goes along with being inclusive)

This ensures that all films from every country and every year up to WALL-E are represented fairly in this compilation. Films from later years than 2008 are also included, but they may deserve a higher ranking.

The actual sources used were:
IGN
TimeOut
IMDb
TIME
TotalFilm
Chlotrudis
Rottentomatoes
Film4
Worlds Best Films

I then assigned a score to each rank. For example, in a list of 50 films, 1st place might get 120 points, 2nd place = 118, ..., 50th place = 22, and everything not listed = 0. In general, the more films that were on a list, the more it was weighted, in order to maintain a constant step of 2 points between places. Then I added everything up.

See http://www.imdb.com/list/jGULmr_PHPM (Version B) for a list with more sources and more films.
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1.
Spirited Away (2001)
    1 2 3 4 5 6 7 8 9 10 8.6/10 X  
During her family's move to the suburbs, a sullen 10-year-old girl wanders into a world ruled by gods, witches, and spirits, and where humans are changed into beasts. (125 mins.)
Director: Hayao Miyazaki
“ 864 ” - Tony1337
 
2.
Toy Story (1995)
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
A cowboy doll is profoundly threatened and jealous when a new spaceman figure supplants him as top toy in a boy's room. (81 mins.)
Director: John Lasseter
“ 828 ” - Tony1337
 
3.
WALL·E (2008)
    1 2 3 4 5 6 7 8 9 10 8.4/10 X  
In the distant future, a small waste-collecting robot inadvertently embarks on a space journey that will ultimately decide the fate of mankind. (98 mins.)
Director: Andrew Stanton
“ 800 ” - Tony1337
 
4.
The Incredibles (2004)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
A family of undercover superheroes, while trying to live the quiet suburban life, are forced into action to save the world. (115 mins.)
Director: Brad Bird
“ 696 ” - Tony1337
 
5.
Snow White and the Seven Dwarfs (1937)
    1 2 3 4 5 6 7 8 9 10 7.6/10 X  
Snow White, pursued by a jealous queen, hides with the Dwarfs; the queen soon learns of this and prepares to feed her a poison apple. (83 mins.)
“ 682 ” - Tony1337
 
6.
Fantasia (1940)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
A collection of animated interpretations of great works of Western classical music. (125 mins.)
“ 668 ” - Tony1337
 
7.
Up (2009)
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
Seventy-eight year old Carl Fredricksen travels to Paradise Falls in his home equipped with balloons, inadvertently taking a young stowaway. (96 mins.)
“ 624 ” - Tony1337
 
8.
The Iron Giant (1999)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
A young boy befriends a giant robot from outer space that a paranoid government agent wants to destroy. (86 mins.)
Director: Brad Bird
“ 614 ” - Tony1337
 
9.
My Neighbor Totoro (1988)
    1 2 3 4 5 6 7 8 9 10 8.2/10 X  
When two girls move to the country to be near their ailing mother, they have adventures with the wondrous forest spirits who live nearby. (86 mins.)
Director: Hayao Miyazaki
“ 612 ” - Tony1337
 
10.
The Nightmare Before Christmas (1993)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
Jack Skellington, king of Halloween Town, discovers Christmas Town, but his attempts to bring Christmas to his home cause confusion. (76 mins.)
Director: Henry Selick
“ 596 ” - Tony1337
 
11.
Grave of the Fireflies (1988)
    1 2 3 4 5 6 7 8 9 10 8.5/10 X  
A young boy and his little sister struggle to survive in Japan during World War II. (89 mins.)
Director: Isao Takahata
“ 584 ” - Tony1337
 
12.
Finding Nemo (2003)
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  
After his son is captured in the Great Barrier Reef and taken to Sydney, a timid clownfish sets out on a journey to bring him home. (100 mins.)
“ 582 ” - Tony1337
 
13.
Toy Story 3 (2010)
    1 2 3 4 5 6 7 8 9 10 8.3/10 X  
The toys are mistakenly delivered to a day-care center instead of the attic right before Andy leaves for college, and it's up to Woody to convince the other toys that they weren't abandoned and to return home. (103 mins.)
Director: Lee Unkrich
“ 554 ” - Tony1337
 
14.
Pinocchio (1940)
    1 2 3 4 5 6 7 8 9 10 7.5/10 X  
A living puppet, with the help of a cricket as his conscience, must prove himself worthy to become a real boy. (88 mins.)
“ 550 ” - Tony1337
 
15.
Princess Mononoke (1997)
    1 2 3 4 5 6 7 8 9 10 8.4/10 X  
On a journey to find the cure for a Tatarigami's curse, Ashitaka finds himself in the middle of a war between the forest gods and Tatara, a mining colony. In this quest he also meets San, the Mononoke Hime. (134 mins.)
Director: Hayao Miyazaki
“ 542 ” - Tony1337
 
16.
Beauty and the Beast (1991)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
A young woman whose father has been imprisoned by a terrifying beast offers herself in his place, unaware that her captor is actually a prince, physically altered by a magic spell. (84 mins.)
“ 516 ” - Tony1337
 
17.
Ratatouille (2007)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
A rat who can cook makes an unusual alliance with a young kitchen worker at a famous restaurant. (111 mins.)
“ 516 ” - Tony1337
 
18.
The Triplets of Belleville (2003)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
When her grandson is kidnapped during the Tour de France, Madame Souza and her beloved pooch Bruno team up with the Belleville Sisters--an aged song-and-dance team from the days of Fred Astaire--to rescue him. (78 mins.)
Director: Sylvain Chomet
“ 516 ” - Tony1337
 
19.
The Lion King (1994)
    1 2 3 4 5 6 7 8 9 10 8.5/10 X  
Lion cub and future king Simba searches for his identity. His eagerness to please others and penchant for testing his boundaries sometimes gets him into trouble. (88 mins.)
“ 508 ” - Tony1337
 
20.
Dumbo (1941)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
Ridiculed because of his enormous ears, a young circus elephant is assisted by a mouse to achieve his full potential. (64 mins.)
“ 488 ” - Tony1337
 
21.
Persepolis (2007)
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  
A precocious and outspoken Iranian girl grows up during the Islamic Revolution. (96 mins.)
“ 488 ” - Tony1337
 
22.
South Park: Bigger, Longer & Uncut (1999)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
When Cartman and his friends go see an R rated movie, they start swearing and their parent's think that Canada is to blame. (81 mins.)
Director: Trey Parker
“ 478 ” - Tony1337
 
23.
Akira (1988)
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  
A secret military project endangers Neo-Tokyo when it turns a biker gang member into a rampaging psychic psychopath that only two teenagers and a group of psychics can stop. (124 mins.)
Director: Katsuhiro Otomo
“ 472 ” - Tony1337
 
24.
Toy Story 2 (1999)
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
When Woody is stolen by a toy collector, Buzz and his friends vow to rescue him, but Woody finds the idea of immortality in a museum tempting. (92 mins.)
“ 428 ” - Tony1337
 
25.
Fantastic Mr. Fox (2009)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
An urbane fox cannot resist returning to his farm raiding ways and then must help his community survive the farmers' retaliation. (87 mins.)
Director: Wes Anderson
“ 392 ” - Tony1337
 
26.
The Curse of the Were-Rabbit (2005)
    1 2 3 4 5 6 7 8 9 10 7.5/10 X  
Wallace and his loyal dog, Gromit, set out to discover the mystery behind the garden sabotage that plagues their village and threatens the annual giant vegetable growing contest. (85 mins.)
Director: Steve Box, Nick Park
“ 382 ” - Tony1337
 
27.
Bambi (1942)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
The story of a young deer growing up in the forest. (70 mins.)
“ 334 ” - Tony1337
 
28.
How to Train Your Dragon (2010)
    1 2 3 4 5 6 7 8 9 10 8.2/10 X  
A hapless young Viking who aspires to hunt dragons becomes the unlikely friend of a young dragon himself, and learns there may be more to the creatures than he assumed. (98 mins.)
“ 334 ” - Tony1337
 
29.
Mary and Max (2009)
    1 2 3 4 5 6 7 8 9 10 8.2/10 X  
A tale of friendship between two unlikely pen pals: Mary, a lonely, eight-year-old girl living in the suburbs of Melbourne, and Max, a forty-four-year old, severely obese man living in New York. (92 mins.)
Director: Adam Elliot
“ 330 ” - Tony1337
 
30.
Yellow Submarine (1968)
    1 2 3 4 5 6 7 8 9 10 7.4/10 X  
The Beatles agree to accompany Captain Fred in his Yellow Submarine and go to Pepperland to free it from the music hating Blue Meanies. (90 mins.)
Director: George Dunning
“ 330 ” - Tony1337
 
31.
Coraline (2009)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
An adventurous girl finds another world that is a strangely idealized version of her frustrating home, but it has sinister secrets. (100 mins.)
Director: Henry Selick
“ 320 ” - Tony1337
 
32.
Waltz with Bashir (2008 Documentary)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
An Israeli film director interviews fellow veterans of the 1982 invasion of Lebanon to reconstruct his own memories of his term of service in that conflict. (90 mins.)
Director: Ari Folman
“ 310 ” - Tony1337
 
33.
Ghost in the Shell (1995)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
A cyborg policewoman and her partner hunt a mysterious and powerful hacker called the Puppet Master. (83 mins.)
Director: Mamoru Oshii
“ 296 ” - Tony1337
 
34.
Aladdin (1992)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
When a street urchin vies for the love of a beautiful princess, he uses a genie's magic power to make himself off as a prince in order to marry her. (90 mins.)
“ 288 ” - Tony1337
 
35.
The Jungle Book (1967)
    1 2 3 4 5 6 7 8 9 10 7.6/10 X  
Bagheera the Panther and Baloo the Bear have a difficult time trying to convince a boy to leave the jungle for human civilization. (78 mins.)
“ 266 ” - Tony1337
 
36.
Monsters, Inc. (2001)
    1 2 3 4 5 6 7 8 9 10 8.1/10 X  
In order to power the city, monsters have to scare children so that they scream. However, the children are toxic to the monsters, and after a child gets through, 2 monsters realize things may not be what they think. (92 mins.)
“ 254 ” - Tony1337
 
37.
Who Framed Roger Rabbit (1988)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
A toon-hating detective is a cartoon rabbit's only hope to prove his innocence when he is accused of murder. (104 mins.)
Director: Robert Zemeckis
“ 254 ” - Tony1337
 
38.
Chicken Run (2000)
    1 2 3 4 5 6 7 8 9 10 7.0/10 X  
When a cockerel apparently flies into a chicken farm, the chickens see him as an opportunity to escape their evil owners. (84 mins.)
“ 242 ” - Tony1337
 
39.
The Little Mermaid (1989)
    1 2 3 4 5 6 7 8 9 10 7.6/10 X  
A mermaid princess makes a Faustian bargain with an unscrupulous sea-witch in order to meet a human prince on land. (83 mins.)
“ 234 ” - Tony1337
 
40.
Shrek (2001)
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
After his swamp is filled with magical creatures, Shrek agrees to rescue Princess Fiona for a villainous lord in order to get his land back. (90 mins.)
“ 228 ” - Tony1337
 
41.
Kiki's Delivery Service (1989)
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
A young witch, on her mandatory year of independent life, finds fitting into a new community difficult while she supports herself by running an air courier service. (103 mins.)
Director: Hayao Miyazaki
“ 220 ” - Tony1337
 
42.
Sleeping Beauty (1959)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
After being snubbed by the royal family, a malevolent fairy places a curse on a princess which only a prince can break, along with the help of three good fairies. (75 mins.)
Director: Clyde Geronimi
“ 208 ” - Tony1337
 
43.
Howl's Moving Castle (2004)
    1 2 3 4 5 6 7 8 9 10 8.2/10 X  
When an unconfident young woman is cursed with an old body by a spiteful witch, her only chance of breaking the spell lies with a self-indulgent yet insecure young wizard and his companions in his legged, walking castle. (119 mins.)
Director: Hayao Miyazaki
“ 206 ” - Tony1337
 
44.
Whisper of the Heart (1995)
    1 2 3 4 5 6 7 8 9 10 8.0/10 X  
A love story between a girl who loves reading books, and the boy who has previously checked out all of the library books she chooses. (111 mins.)
“ 196 ” - Tony1337
 
45.
Fantastic Planet (1973)
    1 2 3 4 5 6 7 8 9 10 7.8/10 X  
This futuristic story takes place on a faraway planet where blue giants rule, and oppressed humanoids rebel against the machine-like leaders. (72 mins.)
Director: René Laloux
“ 194 ” - Tony1337
 
46.
Sita Sings the Blues (2008)
    1 2 3 4 5 6 7 8 9 10 7.7/10 X  
An animated version of the epic Indian tale of Ramayana set to the 1920s jazz vocals of Annette Hanshaw. (82 mins.)
Director: Nina Paley
“ 194 ” - Tony1337
 
47.
The Bugs Bunny/Road-Runner Movie (1979)
    1 2 3 4 5 6 7 8 9 10 7.3/10 X  
Bugs Bunny reflects on his past cartoon exploits. (98 mins.)
“ 192 ” - Tony1337
 
48.
101 Dalmatians (1961)
    1 2 3 4 5 6 7 8 9 10 7.2/10 X  
When a litter of Dalmatian puppies are abducted by the minions of Cruella de Vil, the parents must find them before she uses them for a diabolical fashion statement. (79 mins.)
“ 190 ” - Tony1337
 
49.
Antz (1998)
    1 2 3 4 5 6 7 8 9 10 6.6/10 X  
A rather neurotic ant tries to break from his totalitarian society while trying to win the affection of the princess he loves. (83 mins.)
“ 180 ” - Tony1337
 
50.
Perfect Blue (1997)
    1 2 3 4 5 6 7 8 9 10 7.9/10 X  
A retired pop singer turned actress' sense of reality is shaken when she is stalked by an obsessed fan and seemingly a ghost of her past. (81 mins.)
Director: Satoshi Kon
“ 172 ” - Tony1337