I just picked this game up on Friday. I haven't opened it yet, but it looks fun. I also have, but haven't opened GOW 2 (since the day it came out), Mass Effect (nearly a year now) and another shooter that I can't even remember. The only thing I'm currently playing is Guitar Hero WT & Aerosmith and NHL Live 09.
With 3 kids and little time to spare I don't get to game all that often. Especially when the games are all rated M.