Steelers (in the poll), because they beat both the patriots and the eagles...
however, if I had to pick who was going to win the super bowl, I'd pick a long shot team that is going to get hot at the end of the season... like... if the Buffalo Bills can make it into the playoffs, I wouldn't want to be the first round team that has to play them. Whatever team is hot going into the playoffs is going to go all the way. Even though those 3 teams may be 15-1, they're lukewarm as far as energy goes, and the same for desire.