All of the bowls, at least make for some interesting speculation on who is really good and who isn't. You get some match ups outside conferences, and it usually just makes things even more interesting.
I fully expected Ohio State to get crushed, and they didn't. I think at the end of the year people try to stand on the conferences and their superiority over the other conferences, while in season they HATE the other teams from their conferences. It's a total crapshoot when it comes to conference strength sometimes.
Pac 10
The pac 10 overall had what most consider a down year, but realy did well in bowl games
The Big 12
Had a GREAT regular season, but some of it's teams struggled in their bowl games.
SEC
Every year they have troubles, the argument always comes up about the teams beating up on each other. Some of the traditional SEC teams who ave been strong in the past were not as good as expected (LSU, Tennessee, Georgia), but there were some strong teams as well (Florida, Alabama) and some suprises (Ole Miss)
Non BCS Teams
Obviously Utah did amazing this year. Beating several top 25 teams, and the team who was one of the best from the SEC. TCU, BYU and Boise state all had good years as well. It would be interesting to see where some of those teams matched up with the stronger conferences.
Maybe the gap is closing between the smaller schools?