The easiest answer is "Not the Bills."
For obvious reasons, I'd like it to be the Pats.
The Jets control the tiebreakers at this point. The Pats have the schedule advantage, but are in deep doo-doo injury-wise, not to mention their less than stellar secondary (which really doesn't make them much different from Miami and the Jets in that respect) and the fact that they'll have to play 2 rookie LBs and 2 LBs who were out of football 10 days ago, one of whom is old as the hills.
Bottom line is, nobody in the AFC East is a Super Bowl team.