Cincinnati Bengals – 2015
The Bengals entered the 2015 postseason with a strong 12-4 record. They won the AFC North as they pulled no punches against their foes. Opposition fans loathed polarizing personalities like Adam Jones and Vontaze Burfict, but they were very effective for the Bengals (via USA Today Sports).

But the problem with these players is that they live on the edge. Burfict demonstrated this with a vicious helmet hit against Mike Brown. ‘Pacman’ became emotional and lost control of himself. Finally, the Bengals missed a field goal and Pittsburgh stole the game.