I know this isn't the "proper" forum to discuss sports, but what the hell.
AFC: Indianapolis vs. New England
--> Indy has a great offence when playing indoors or in nice weather. Quite simply, because it's going to be -30 Celcius with the wind chill for the rest of the week, I don't see Indianapolis winning in the cold weather. Plus, their defence sucks, New England is a solid overall team and Tom Brady right now is as good as Peyton Manning.
Winner: New England
NFC: Carolina vs. Philadelphia
--> Although Philadelphia has Donovan McNabb and...that's it, Carolina is another warm weather team and Philly seems to have a good rabbit's foot up their arse, combine that with cold weather and I believe Philly wins.
Super Bowl: because New England is the superior team IMHO, the will win it all.
On a side note, I think it's good the Miami Dolphins decided to keep Dave Wansteadt as head coach. Although the Dolphins choked, under his tenure the Dolphins went 10-6, so you cannot ask for much more than that. But since Marc Bulger had a breakout season, that makes Kurt Warner expendable. With good receivers, Dan Marino taking over as VP and Warner being similar to Marino is his prime, I can see Warner replacing Jay Fiedler as the no.1 QB.