GTA 4 or Call of Duty 4

So...GTA IV or Call of Duty 4. I'm tryin to decide which one to get out of the two. :?GTA 4 or Call of Duty 4
Hands down COD4 is waaay better. Online multiplayer is insane, the campaign is great and the weapons are awesome. Oh and nice one on the Herman Li thing. :)GTA 4 or Call of Duty 4
Please refer to the sticky at the top for reccomending games. On topic: I would pick Call of Duty 4, because I haven't played GTA IV yet.
i would go with CoD4 because it has a great single player campaign, and the online will last you a long time
yeah COD4 but GTA4 has its unique traits too but yeah COD4 i play much more