Here's how I see it.
The Bengals are 7-0 at home, and yes, they do have something to play for. They are still in the hunt for the #2 seed in the AFC. They will not rest their starters and will go 8-0 at home. Also, Joe Flacco has a knee brace and he really struggled to have mobility in the pocket and when throwing vs. the Patriots. I expect the Bengals to take down the Ravens.
Now this one, is the key game. This decides the Chargers's fate. The Jets lost to the Dolphins 23-3 at New York. So they will probably get hammered at Miami right? Not so fast. The Dolphins REALLY struggled vs. the Bills, to go along with that, Ryan Tannehill injured his right knee. ESPN says that it is very sore right now. Most likely he will start the game, but I expect Tannehill to struggle due to the Jets front seven, arguably one of the best in the game vs. the O-Line of Miami arguably on the worst. Along with that, Geno Smith played very well against a very good Browns defense. Rex Ryan might get fired, but he will not leave without a victory. I expect the Jets to play spoiler in Miami and give the San Diego Chargers an opportunity to clinch the AFC wildcard.
The Chargers will host the Kansas City Chiefs
The Chargers played OK vs. the Raiders. But come on, it's a rivalry, no one said it was easy. The Chargers now host the Chiefs who will most likely rest their starters. Why? Well, for one thing, they have nothing to play for, they will probably want their RB Jamaal Charles, QB Alex Smith, and their OLB to rest for the Wild card game. They are pretty much gift wrapping a Christmas Miracle victory to the Chargers.
Now, I do believe that all is possible. I believe that the Ravens will lose and that the Jets will play spoiler. On top of that, I believe the Chargers will be able to clinch the 6th seed in the AFC and create some havoc in the playoffs.