Best 360 game to buy

 I want to get another game for 360 but i don't know which one to get. Ive played Fight Night Round 3 and thats pretty fun but people say its repetitive. I don't know a good one to buy. Input needed por favor. ;) thx

Hold off till the 29th and pick up Forza 2.

There is a demo if you'd like to try before you buy.  

burnout revenge, kameo, oblivion, guitar hero, forza nxt week or dirt in a couple of weeks :D

crackdown as well is gd fun n it comes with halo 3 beta!

Gears of war.

Im fixing to sell GRAW 2, because the online has alot of hicups and the achievements are easy 2 get.