What is the best game (or games) i should buy? (xbox360)?

i am looking for a good game to buy for the xbox 360 i already have codwaw,battlefield bad company, battle field bad company 2, codmw2,codmw, burnout, poker, condemned 2 bloodshot, resident evil 5, ratatouille,madden 08, ncaa 08 football, champ. paintball 09, sonic hedgehog