I think all the pressure is on the Patriots. Once again they are already annoited the winners before playing the game. It is expected by most, and they have to live up to so many other peoples expectations. Every year they don't win the Superbowl with the Amazing Brady and Belicheck duo, is a failure to the umpteenth degree.
The Ravens have some pressure to get there, but not many have expected them to get To where they are. Hell, we had supposed fans of the Ravens so convinced that they would lose last week against Manning, that they didn't even watch the game! In most peoples minds, the Ravens are playing with house money since beating "the best team in the NFL". Now people are saying "Now THIS time, really, the Patriots ARE the best team. And besides, you got lucky last week." This could be what lets them come out loose and the Pats tight. Here's hoping.