How is Call of Duty 4 the killer to Halo 3?

[Tony1001]

I own a 360 myself- If anyone wants to verus me in Halo 3 my gamertag is Lord AMR

 

[Eric X]

Because, Call of Duty 4 is supposed to be the best of the best for CoD series. Its got perks, better grapics, and much more things. But you could never really tell until it comes out in November 5.