I wanted The Chargers. A west coast team, not a division rival, traveling to a cold-weather stadium. But, the story plays out better if it's this particular division rivalry. Here are the advantages as I see them.
Coaching - Pats. This is a no-brainer.McD is a good coach but he's not the GOAT.
QB - Bills. Sorry, but Mac is a mediocre QB. Only in NE, does anyone think otherwise. Allen brings the intangibles. His arm, his legs and his ability to sacrifice himself.
Offense - Even. NE has the ability to break big runs, Buffalo can hit big passes and as Allen goes, the offense goes with him. Both teams are inconsistent. For the Bills, that means play-calling. Daboll has not gotten past calling ridiculous plays at ridiculous times.
Defense - Even. These are two top-tier defenses and both will refuse to give in to the other team.
Other - Pats. The Bills have a bad habit of getting in their own head and I think NE will bring more of a "been there"...