by far. It isnt close. These teams play in entirely different leagues and barely play anyone else, far from all of them. So you have to go with the best resource which is statistical models that do their best to account for this and make teams comparable when they play a completely different level of team all season long

I dont need to look to know that Mich St and Tech are definitely above byu in s&p, FPI, and sagarin. Even then, the tech win is better because Arizona might be the worst team in the conference and the b12 is a conference we are fighting for position with. Similar reasoning for ole miss (SEC team on the road against a bottom half pac 12 team)