My biggest fear is a Pats/Niners SB. If the weather sucks that's a 4th ring for Brady.
The early game will greatly influence my rooting in the late game. Pats win I'll be rooting for the Hawks, Broncos win I'll be rooting for the Niners.
Of the 4 teams remaining I'd like to see Manning get another ring.
EDIT: And the Chili Peppers dying of hypothermia on stage wouldn't suck either. I was actually looking forward to Bruno, just because my wife likes him (I do too to some extent I guess). Now there is going to be filth in the water.