As the title states, this was my favorite Voyager episode ever made. The story was perfect for an episode of Star Trek and the only thing disappointing about it was that it should've been a two-part episode giving more time to focus on the inhabitants of the world as they worship the "Skyship." At times I even think this could've passed as a Star Trek Movie plot. I am now learning from a previous comment that this episode was based on a book by Robert Forward and I will be checking it out as soon as possible. The Doctor's trip away from Voyager added a interesting history to the character and I think that they handled it well by just showing the doctor leaving and coming back without knowing what happened to him, then finding out later through dialog what did happen. This episode also should be noted for it's greatness because although there was a small bit of conflict at the end, this episode focused more on problem solving rather than space battles. Also it didn't rely on the return of old favorites (Borg, Q, etc.) to make it good.