re: What's the tie breaker for the divisionless SEC CG?

With a 12 team playoff, who will care? There would be a solid argument that the best spot to be in that scenario would be 3, and out of the sec championship. That team would still be in the playoff, would be seeded higher than the sec championship game loser, and would skip a tough game.
They’ll still stage the game because money, but it’s going to lose a lot of its luster.