Burnout Paradise - I considered this the perfect combination of real and fake driving. There was something about the dynamics that just made it fun.

Bad Company - Totally fake dynamics, but fun to play.

Assasins Creed 2 - A huge improvement in graphics over the first (which was a blast). And it hadn't quite made the video game sin of forcing you to do something over and over until you did it perfect to move on. That's the biggest sin a video game can make with me. Being trapped in a mission that you learn through repetition (boring).