Obviously, the usual suspects -- quarterbacks Josh Allen and Patrick Mahomes, among others -- will have a big say in which will go on to represent the AFC in the Super Bowl. But each team also has an X factor who will also loom large in Sunday's outcome. Let's take a look at each team's X factor, starting with the two-time defending champs.

The Buffalo Bills head into Arrowhead with a player who has the potential to absolutely turn this game on its head

We break down the biggest strengths and question marks in the Bills-Chiefs matchup, plus the X-factors that could make all the difference.