I will have to go with most so far 9.5. The co-op campaign was magnificent and that was what sold the game for me. The promise of me and 3 of my buddies rallying together to bash the evil covenant. Multiplayer is great fun but not exactly my thang. I like the "realness" of COD4 better. That being said I still play a few rounds of halo 3 every now and again.
One thing COD4 could gain from the Halo3 is the vehicles. Man those things are great fun just to mess about in (multiplayer).
"If you've got them by the balls their hearts and minds will follow."
Quote by- The Imortal John Wayne, the original BADASS!








