At this point Las Vegas is calling it even.
I think Seattle got LUCKY against an injured Aaron Rogers QB last weekend. If one believes in "destiny" it could be argued that the Seahawks come back including an onside kick, two point conversion, and a touchdown in overtime are "signs" that they are meant to win it all again.
On the other hand the Patriots are a whole lot better than Green Bay on offense. Tom Brady is healthy and hungry to win another Super Bowl after losing the last two they were in. Tom will playing to restore his legacy.
Seattle isn't nearly as hungry to win the Super Bowl as the New England however they're motivated by the lack of respect they've endured all season. They will be trying to win to prove their detractors were wrong. Note: Sherman their defensive cornerback is injured.
I'm going to go with the Patriots if they can establish an early lead.
I can't imagine the Seahawks having two (come from behind) wins.