Kansas City #Chiefs veterans will make their AFC Championship game debuts on Sunday vs. Buffalo #Bills | @EdEastonJr

The Buffalo Bills have been one of the NFL's dominant teams for the last five years. They've won 10 or more games in each of the last six seasons, and 11 or more for five straight. They've won at least 13 games three times in that span.

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