Let's break it down:

Oregon - coaching change has been seamless, Pac 12 schedule will test this staff though
Oregon St - typical Riley team, win some they have no business winning, lose some really bad games
Arizona - Rich Rod offense will always scare some teams but not sure its sustainable in big games
Arizona St - played with Wisconsin and can pull an upset, Graham may actually be a good fit here
UCLA - Mora has them believing, continues to add talent, took two DB's LSU really wanted, this program could rise up and be a force out west
USC - probation is really hurting depth, might as well stay with Kiffin until you can go out and attract a top notch coach, this is another perfect gig for those NFL guys - Del Rio might be a good fit if he wants a head college job
Cal - prolific offense, the LA Tech dropoff shows that this coach will generate excitement and the offense will be prolific
Stanford - if they continue on current pace I don't see how NFL doesn't come calling, Harbaugh developed a nice little coaching tree out there, really good assistant hires by Harbaugh
Washington - Sark may have a decent team this year but they still need some marquee PAC 12 wins and some consistency
Washington St - again, another tough offense to prepare for and Leach will bring some talent in to remote locales
Utah - still adjusting to a tough conference week in week out
Colorado - actually starting to show a little pulse, recruiting will always be difficult for Boulder when Colorado doesn't have a lot of NFL talent