id say deffinately get gears of war, but if you want soemthing abit different, go or dead rising, another AWSOME 360 game
lol, depends what your in to. If you're an RPG guy I would recommend Oblivion(who wouldn't?). Shooters, I'd probably recommend Gears of War as well. Dead Rising was really good as well. Also, I enjoyed Enchanted Arms, it was a pretty good RPG with a Final Fantasy-ish feel to it.
if you into tactical fps then get rainbow six and if your into gory shooters then get gears, both excell in their fields so whatever you pick you will have a great game
Depends on what type of genre you like to play. But I recommend you Gears of War. I didn't really like those types of games until I played it. I love it.