Wawkhawk and good PS3 games....?

I just got a PS3 for Christmas and the bundle came w/ Little Big Planet GOTY Edition and Mod Nation Racers. Which are two must haves I've heard. (Both are very good) My question is 1. what are some other exceptionally good PS3 games I should get and plz give me at least three suggestions. 2. What is ya'lls opinion of "Warhawk"? Also were should I buy it and is there any "Game of The Year" deals where I can get all the DLCs w/ the game??? (If the DLCs are good)