Hard to tell how good any conference is right now honestly. On the surface, my impression is that the Big 12 is right in line with the ACC, which are both a decent step behind the Big 10 and the SEC. But that is just my subjective reading seeing teams play.
I never thought this would happen, but it appears that NIL and transfer rules have brought a ton of parity to NCAA football. It is likely the conferences are closer in talent than ever before. And Boise could easily be as good as any team out there. Until we get to the playoff and bowl season we will not know.
This has been the craziest college football season I can recall in recent years though.