I tried to like Halo 2, but it really is just a rehash of the first game. There's nothing new, except now you can pull people out of vehicles and use two guns at once (hats off to the Bungie boys for that revolution in gameplay). Half-Life 2 was truly groundbreaking, with moments of unscripted action unsurpassed by any other game.

At the end of the day, Halo 2 was always aimed at the more moronic end of the market. That's partly why it's X-Box only (zing). And seriously, I don't care what you idiot fanboys have to say about that. Anyone with half a brain can see that it's another NFSU or, to a much lesser extent, GTA:SA - a game released to please that end of the market who enjoy films like 2 Fast 2 Furious and listen to Linkin Park. And that's the truth.

Co-op is awesome though. Co-op on any half-decent FPS is awesome.