If you just looked at the regular season, Allen and the Bills have dominated Mahomes and the Chiefs, going 4-1. This years matchup in Buffalo on November 17th was a battle but, again, it was Allen and Bills pulling out a 30-21 victory -- on the legs of Allen's electric fourth quarter TD run to seal it and hand the Chiefs their first loss.

The Patriots' Tom Brady won his first two playoff matchups against Peyton Manning before losing the final three in the only QB rivalry with five postseason meetings. Brady split four matchups with Baltimore's Joe Flacco with the Patriots and Ravens alternating wins in those matchups that came in a span of six seasons.