I don't think the Ravens are actually very good. That defense is a shadow of its former self. I would not be surprised to see them either stumble (Patriots take #2) or make an early exit in January.
The Colts will be interesting to see. I expected what happened yesterday, Belichick versus a rookie is just asking for trouble, even if it is Luck. I don't think they'll catch Houston, but they might stick for the wildcard. Luck versus Manning would be a great story...
If the other game holds true, I think the Patriots put a complete clown suit on the Steelers, especially if Roethlisberger's injury lingers. I'm not very impressed by Pittsburgh at this point.
I think Houston's the team to beat if they stay healthy.