i chose alphalt because it looked fun with the power ups, if i want something more realistic ill get real racing hd after, but with alphalt i like the mario kart style with real cars and things, a bit like the game 'blur' for xbox 360/ps3
Real Racing is the most difficult to control. If you're into that, good luck. 😀
NFS: Shift has the most awesome graphics. GT Racing has framerate issues but is quite fun and has tons of cars and customizations. Longer single player campaign as well. I recommend any of these two for the fun factor.