the ACC isn't better than the Pac-12. The Big 12 had a nice run with TCU but a lackluster bowl season put a damper on an okay season. Ok State, Baylor, BYU...rough years.
BIG was okay. A few big wins, a few marquee losses. Two teams in the playoffs but both lost.
I don't see this huge disparity from the other P5s with the Pac-12 being way down. It's just not there.