What games in your opinion have the best soundtracks?

Metal Gear Rising's soundtrack is very good. "It has to be this way" is my favorite.

@journey_951 yeah, agree too. i especially enjoy the vocal, songs about tales and stories about the dragonborn. even though the voice is not so good but the intentional idea and the world do not revolve round the character did make the game one of the best games ever

Civilization 4 has great music throughout, but in particular, the opening theme to the game is absolutely amazing.