You must have played both games ! 

They have almost the exact same review scores

So ... which one of them do you guys prefer?

SP: COD 4 Modern Warfare

MP: Modern Warfare 2

Easily CoD4. Has better singleplayer and multiplayer hands down.

COD4 - the start of the 7th gen!

CoD4 was the first true next gen shooter, it changed the scene for FPS and to top it off.....no other game has done it better since

MW2 still the funnest FPS MP i've played, although it has so much crap in the game still really fun and quick paced

^this, you can close the thread now.

Anything really wrong about Modern Warfare 2?

I liked mw2 the best, I think it took all the goods of cod and made it better (for the most part, no dedicated servers on the pc version sucks ass)... I certainly played it more than mw but the single player on mw was certainly better cause of that WoW Nuke zomfg moment

MW1 is a groundbreaking and excellent game, one of the top 10 of 2007.

MW2 is a clusterfuck of shittiness.