I agree Ohio St is in easy. I feel really queasy about putting them with a 6-0 record while some of these other teams have played 10 or 11 games but they are benefitting from the fact that no one outside of Bama and Clemson looks playoff caliber. If the committee had a 10-0 Oklahoma, or A&M had at least played Bama tough, or ND stayed with Clemson I think they would consider leaving Ohio St out, but everyone else’s warts puts Ohio St in.
I predict the 4th spot goes to ND but I would give it to Oklahoma if I were a one man committee. They have the conference championship. They have two close early season losses but avenged one of them. They have 3 ranked wins in Iowa St, Texas, and Ok St and they avoid potential rematches of blowouts in either the semis or title game.