I know i'm a bit late for this one lol. With "Assassin's Creed: Brotherhood" in the horizon, I figure I'll share this with you all.
I love music, by that I mean all forms and genres. This is not only a game but a display of art in a very graceful yet violent way. One of the things that captured my eye was not only the game play and story, but the environment and music. The Renaissance was one of the most influential and creative time in Europe.
this is one of the best music scores I've heard in a game in years if not ever, It's composed by Jesper Kyd, who is one of the Juggernauts in the gaming industries when it comes down to lay down an epic track in a game. Well I'll stop boring you

and just leave you with what in my opinion is the best song in the game.
http://www.youtube.com/watch?v=O0i6YFrSs6c