Auburn has no chance of making the playoff. Even if Bama and MissSt lose all their games for the rest of the season, and Ole Miss loses to Arkansas (but beats MissSt), Auburn can't win the SEC West. There's no chance a 9-3 school that doesn't play in (let alone win) it's conference title gets invited to the playoff.
When MissSt meets Ole Miss in the final week of the season, their records will likely be 10-1 and 9-2, respectively. Assuming Bama doesn't blow it against Auburn, they'll win the SEC West. However, should Bama lose and Ole Miss win, I think Ole Miss would represent the SEC West in the SEC title game.
If MissSt shows up for the game against Ole Miss and dominates both sides of the ball, it would be very tough to argue why they shouldn't be in the playoff, assuming Bama wins out and wins the SEC title.
Assuming UGA beats GATech, it's entirely possible that Florida will have gone their entire season without playing a single team in the top-20. Even if they're go undefeated and win the ACC, that should be a huge knock against them. A similar situation exists with Oregon, should Arizona lose one or both of its final two games this season. UCLA should beat USC this week, meaning Oregon would face UCLA for the PAC-12 title.
I would feel far more comfortable awarding a playoff spot to an 11-2 UCLA (should they win the PAC-12) than a 13-0 FSU. That's how much I think FSU's weak schedule matters.
If OSU wins the B10, they should earn a seat in the playoff.
If Bama wins the SEC, they should earn a seat in the playoff.
If OrSt wins the PAC-12, they should earn a seat in the playoff.
If UCLA wins the PAC-12, they should earn a seat in the playoff.
That said, here are the scenarios I think should happen:
If OrSt wins PAC-12:
1) SEC champ
2) PAC-12 champ
3) B10 champ
4) MissSt
If UCLA wins PAC-12:
1) SEC champ
2) B10 champ*
3) PAC-12 champ*
4) ACC champ
*Given the PAC-12 is hosting the playoff game, the ranking of 2/3 doesn't seem to matter.
Here's the likely outcome, regardless of if UCLA or OrSt wins the PAC-12:
1) SEC champ
2) PAC-12 champ
3) B10 champ
4) ACC champ
I don't like the "likely" outcome, since it rewards FSU for playing in a really crappy conference. What I don't even like about my first scenario is that I don't think it makes sense to make Bama and MissSt play a rematch, especially when humans are picking the four teams.
In this scenario, FSU will probably get blown out by Bama, thereby raising numerous questions of why FSU was allowed a spot in the playoff.
This is what I hope would happen:
1) Bama (SEC champ)
2) OSU (B10 champ)
3) MissSt
4) PAC-12 champ (UCLA or OrSt: it doesn't matter to me)