As good as gears of war 2 will be it won't be able to compete graphically with KZ2. As nice as the UE3 engine is it can't compete against 100+ people working to the metal getting every bit they can out of the PS3.
I don't see how you can pass this statement off as fact. The fact is that we have no idea how many of the other 2008 titles will stack up to KZ2. From what we've seen of KZ2 at E3, its graphics aren't infallible.