NEED HELP QUICK!!!! HAlO 3 OR COD4?

[Darth Toast]

So i have halo 3 and cod4 already. Im getting an xbox 360 very soon, but i dont know which game to play first. ill be doing single player first.
PLZ HELP ME!!! HOW CAN I POSSIBLY DECIDE WHICH ONE TO PLAY FIRST??? THIS ISNT FAIR, NO HUMAN SHOULD HAVE TO GO THROUGH THIS!!!
PLZ IM GOING CRAZY!!!

 

[Rob]

In my opinion, the Halo 3 campaign was more interesting. It was a lengthy story with a variety of levels and the last mission is awesome.