+1 for RE4 (Close call with Metroid Prime)
Do we have to put a -1 game ? Cause I can't think of any in the list, maybe the Windwaker, still fun but the cartoony feeling wasn't something I like, still the ending was awsome.
My favorite games for this gen:
1. Gears of War 2. MGS4 3. Killzone 2 4. Halo 3(Underated by many) 5. Mass Effect