From what i heared, it will be one of the rare Super Bowls, where the 2 favorites will be in the endgame other then in years before where maximal one of the supposed favorites reached the finals.
At least thats what i got out of the SB chitchat within the "Superb Owl comments" of the Steven Colbert show.(which i stopped watching till SB is done, thx but no thx)