Well, since this will be just for fun, I'll throw in for Gears 2, and I'd also like to volunteer to organize the avatar selection, should Gears 2 win.
I'd feel much more comfortable if we were betting on gamerankings average, but IGN is a fair bet, that's fairly even on both sides.
In the event that they get the same score, I'm assuming the bet is off.
In the end, this is all just guessing, but my guess is Gears 2. I won't admit to "ownage" if I lose. In the end, one review site has so many variables, that it might as well be totally random. That's why it's fair, and that's why I participate.
lol, early avatar suggestions:
I don't need your console war.
It feeds the rich while it buries the poor.
You're power hungry, spinnin' stories, and bein' graphics whores.
I don't need your console war.
NO NO, NO NO NO.