Okay, it looks like this. Grant had a 204 yard rushing game against the Seahawks in the snow. Now, I still believe that that game was won by Lambeau, not by Favre, but 200 yards? That shit is impressive, and if you're going to beat the Patriots, you're going to have to run the ball quite a bit. So that's one thing. The other thing is that on defense, I don't care how great you think your corners are, Brady and Moss are better. If you want to give the Pats offense trouble you need to pressure them, not rely on your secondary, because they'll end up getting beat. The biggest problem is that Brady doesn't throw INTs. Favre does. Turnovers will kill ANY attempt to beat that team because not only are they very, very good, they don't make mistakes on offense very often. By which I mean I can't think of one off the top of my head.
I would give about 6-1 odds on any bet against the Patriots, and I'm being conservative.