Originally Posted by MigRib
I would also mention Fallout 3.

Well, I deliberately left that game out because I don't think it deals with player agency as well as the other Fallout games. There's no real factional interplay to speak of and apart from the Megaton decision, very few game-affecting choices.
I also won't mention the vanilla ending, because the lack of choice there was a disgrace for a "Fallout" game.