Don't forget that if the Big Ten and Pac-10 left the BCS, the Rose Bowl would have been USC / Ohio State--a pretty compelling matchup.
It would be. But it would not determine the true champion. Especially with neither conference having a conference championship. USC/OSU every year would get boring. I for one boycotted watching the Rose this year because of their arrogance. I think the majority of the country would like to see an equitable ending to the season. That means having a playoff. If two conferences want to try and prevent that, then they should be destroyed in the court of public opinion.