Verified answer

If you look at the actual stats, the Cleveland D is giving up 30 passing yds/g less than the Vikings and both have given up 4 TD passes. Orton and Campbell are pretty close in fantasy points - Orton is about 1 pt/game higher so far. It's pretty close, but I'm playing Orton this week in a league where I have the same choice.

Campbell against Cleveland only because of that Vikings D

Campbell will bounce back from his worst game so far on the season. He will put up good numbers VS CLE. He puts up solid numbers consistently every week so there really isnt much risk with him either.