Agreed that Hawaii is a far better fit for the Pac 10 than the MWC. It fits with the Pac 10 as a flagship state university, its academics are at least on a par with the Arizona States and Oregon States of the Pac 10, and the team draws well enough to have the resources to compete in a BCS conference. Also, travel to and from the Pac 10 sites is less difficult that trips to and from the interior west.
Adding Hawaii would make the Pac 10 an 11-team conference, the same number as in its partner the Big 10. There's something to be said for symmetry.
The MWC should add Fresno State and Boise State, two programs that get very good support from their communities, and have played highly competitive football. I think they would have a good argument for BCS inclusion, as they would give the BCS a firm majority in Division I-A affairs, and extend the reach of the BCS to many states which do not already have a representative.
I wouldn't split the MWC into divisions or go for a championship game. That's because the BCS might require the MWC and (an ND-less) Big East, as the two less powerful conferences in the setup, to take part in a BCS play-in game.
Your 100 percent correct michaelr Hawaii belongs in the Pac-10. As for MWC Fresno St. and Boise St. do belong.
Also Nevada is a Perfect Fit and So is UTEP because they were a orginal member and plus they are still within the same time zone.