As of this morning, the Big 12 has two top ten teams in the coaches' poll, and two others that are ranked. Eight of the teams in the conference are capable of beating each other. That leaves only two on the outside, Kansas and Iowa State, and Iowa State has already played several close conference games.
The Big 12 will take criticism because it's fun to criticize, and they probably don't have a top 4 team in the country, but that is an overblown aspect when assessing the difficulty of the league.
Geoff, I hope you're OK. We're going to host a Top 10 team on a beautiful autumn Austin Saturday this weekend in front of a capacity crowd of 104,000 or so. I hope you still have the capacity to enjoy it.