I get that it's an NFC team, but they are still 9-3 and KC is on the road... at 7-5, 3rd in the division with 4 games left - I don't think there are really any gravy games.
I don't see SD losing all 4, the win at BAL was impressive and I think they can beat the Patriots. Hell, they could go 2-2 or 3-1... anything is possible.
I think KC wins @ AZ and loses @ PIT, I'd flip those 2 games, but can see both home games as a win. If SD is out, you'll have a deflated visitor and should get the win. If SD is in the hunt - look out.
The Bengals - it's hard to trust them and while PIT has been sporadic, I think they'll sweep Cincy.
Here's my revision from your list - if I messed something up, you'll let me know.
Patriots, Broncos and Colts get slots 1-3.
2. Here's how the top wild card contenders fare:
Dolphins (7-5):
vs. Baltimore L
@ NE L
vs. Vikings W
vs. Jets W
Dolphins end up 9-7.
Browns (7-5):
vs. Colts L
vs. Bengals L
@ Panthers W
@ Ravens L
Browns end up 8-8.
Steelers (7-5):
@ Cincy W
@ Falcons W
vs. Chiefs W
vs. Bengals W
Steelers end up 11-5.
Ravens (7-5):
@ Dolphins W
vs. Jags W
@ Texans W
vs. Browns W
Ravens end up 11-5.
Bengals (8-3-1):
vs. Steelers L
@ Browns W
vs. Broncos L
@ Steelers L
Bengals end up 9-6-1.
Chiefs (7-5):
@ Arizona W
vs. Oakland W
@ Steelers L
vs. Chargers W
Chiefs end up 10-6.
Chargers (8-4):
vs. Patriots W
vs. Broncos L
@ 49ers W
@ Chiefs L
Chargers end up 10-6.
So, however that works out... believe that puts PIT, Baltimore and KC in as the #6 with the sweep over SD.