I think they are both great games. Call of Duty:4 Is the best war game I have played. But it has many flaws in it. A lot of the wepons in the game are very in accurate. A saw should not take 15 to 20 rounds to kill a man. and no mater how close you are a mp5 should not have more power then a RPD. And what is with not being able to kill a man when they run at you to knife you? If you are crazy enough to run at some one with a gun that is shooting you, you should still die. but these people live ( I will add I have done that to some before) The game play is still amazing. and I really love the Online game. but their is some things that could be fixed.

Halo 3 is a Game of its OWN! it is the series that made most of us gamers. and has bread life in many other games. Is has a huge flaw tho, that is Bungie!!! at times they make it seam as if they just don't care what the fans want in the game. They give a game they we have to have but yet leave out the little things that make us enjoy it so much. And when they go and ad new playlist they do really give us what we want. their is a big flaw in this game and that is the mele system. I wont talk to mush about that because my blood is already boilling on that.

BOTH are great games..