Here is how they line up after 10 weeks.
Passing a big road test at USC assures the Ducks that they are still the best team in the conference. Their offense is unstoppable and it's going to be hard for anyone to contain them over the final three weeks. Oregon isn't home-free quite yet, however.
The final two weeks feature a home game against Stanford and a road affair with rival Oregon State. The Ducks will be tested down the stretch and will have plenty of opportunity to improve and legitimatize their position in the BCS standings.
An extremely impressive 66-10 victory over Arizona allows the Bruins to jump into the second spot in the conference. The Bruins' offense was unstoppable and the team looks to be in prime position to battle for a spot in the Pac-12 title game. With the big rivalry game against USC steadily approaching, UCLA needs to maintain its focus if it wants to take the south.
The Cardinal didn't get much of a fight from Colorado this weekend. The 48-0 dismantling of the Buffaloes keeps Stanford alive in the race for the Pac-12 North. Representing the north in the title game will not be an easy task to accomplish with the Cardinal facing ranked teams in Oregon State, Oregon and UCLA to end the regular season.
4. Oregon State
After finding themselves in a tough battle a week after losing to Washington, the Beavers are stuck in the fourth spot with other teams playing slightly better football. This Saturday's affair with Stanford is huge and picking up a road victory would put Oregon State in a pretty good position down the stretch.
How do you get blown out on the road in a huge game and not drop in the rankings? Well, what team should leapfrog Arizona? USC, who just lost to UA last week, dropped its game to Oregon. Washington has won two straight, but the Huskies were just recently blown out at Arizona. Arizona State also fell to Oregon State and is riding a three-game losing streak. The Wildcats played poorly last week, but they retain their spot by default.
The Trojans looked outmatched against Oregon and while they stayed competitive, the Ducks were in complete control of the game from the opening kickoff. The Trojans are in for a battle for the Pac-12 South now after rival UCLA's big win at home over Arizona.
Two straight wins have kept the Huskies in the fight for a bowl game. At 5-4 overall, 3-3 in the Pac-12 and three games remaining against three of the conference's weaker teams, UW could make some noise down the stretch.
8. Arizona State
The Sun Devils battled on the road against Oregon State, but were still unable to pull off the upset. ASU has now lost three in a row after starting 5-1 and head into a very tough environment on the road in Los Angeles. With USC coming off two losses, ASU has a chance – albeit a thin one – to go on the road and steal one from USC.
If the Sun Devils can't pull off the upset, they must figure out a way to win one of their last two to become bowl eligible. Luckily for them, one of those games is against Washington State.
Two straight wins against two of the Pac-12 bottom-feeders have kept the Utes in the fight for a bowl game. Utah must figure out a way to win two of its last three, but it won't be easy with Washington and Arizona still on the slate.
Losers of three straight, the Golden Bears' final two contests are against Oregon and Oregon State, so things aren't getting any easier for them. The most recent loss to Washington eliminated Cal from bowl contention and leaves plenty of questions regarding the future of the program.
The Buffaloes lost big to Stanford, which was completely expected. CU doesn't have much going for it right now and the future doesn't look much brighter with what the program currently possesses.
12. Washington State
The Cougars remain winless and are still the only team to lose to Colorado. Things can only get better in year two under head coach Mike Leach.