The Pac 10 had good teams this year. USC and Oregon were top ranked until QB injuries knocked them down.
Having good depth is critical to winning a championship. The teams with the best 1 through 22 players will not win a championships unless they have capable backups.
I don’t disagree with you. USC and Oregon were good teams. And any given year UCLA or Stanford or U-Cal can have a good team. There is just no comparison when it comes to the SEC or Big12. I think the Big East ranks just under the competitive level of the PAC-10 but are similar in their competitive level in the last year or two.