You can't leave out the undefeated conference champions. So Michigan, Washington, and FSU will be in. Yes, FSU is overrated, but they're an undefeated Power 5 conference champion. They're in. Last spot goes to either Texas or Bama, and Texas deserves it for the head-to-head win in Tuscaloosa. This whole argument that games at the end of the season mean more than games at the beginning of the season, then why have a damn season?? Texas won the head-to-head and should be in.
And championships don't carry over to the next season, so people saying Georgia should "get to defend their championship" are being purposely dumb. Football is season to season. There is no carryover.