starcraft on 06 March 2009
The comparison is, as someone already said, between Halo 3, Gears of War 2, and Call of Duty 4.
For me personally they go like this:
Gears of War 2
Call of Duty 4
Halo 3
By the most objective standard we have:
Halo 3/Call of Duty 4
Gears of War 2
People claiming nothing compares to Killzone 2 are correct in a way. Killzone 2 doesn't even make the league of these games.
starcraft - Playing Games = FUN, Talking about Games = SERIOUS
