Best xbox games out there?

ohkaii so i got an xbox for christmas,and i have a few games so far i have saints row 1 and 2,Fable 2,Kane & Lynch,Fear 2,ins creed 2,tomb raider underworld and Saw..my boyfriend is really into COD MDW2 but im not into those kinda of games.my games is kinda like stated above..or soul caliber...so my question is-Whats some really good games i can buy for my Xbox 360?