But do any of them scare you?
The Seahawks have been in the past two Super Bowls, but many had them written off at 2-4. Not so fast, as Russell Wilson has them on a three-game winning streak.
The Steelers have had several key injuries this season, but with Ben Roethlisberger back have won three of four.
The Chiefs started 1-5 but have won six straight. And the Jets? They just knocked off the crosstown rival Giants.