I thought the spread was going to be a massive advantage for us regardless of who we faced in the Super Bowl, for the simple reason that the four teams who run option the most (Seattle, San Fran, Carolina, Washington) are all in the NFC. AFC teams have MAYBE seen it once, as opposed to teams like Atlanta, who was much more well prepared after seeing it four times this season.
Baltimore played Washington late in the year and Washington did whatever they wanted on the ground. Morris had 120+, RGIII had ~40. Baltimore is a good defense but they're living more off their reputation this year. They're hard hitting, and disciplined but not that fast. I think they'll be ready for Kaep to run, but just like we saw against ATL, it should open up huge holes for Gore.
The guy though that I think is going to have a huge game is LMJ. If he gets in space against Baltimore, forget it. They don't have anyone that can catch him. I think he has a huge day (8 rushes, 80 yards, 1 td).