Two unbeatens still remain out West and one will face a major road test this weekend. But a former Pac-12 Player of the Year candidate will return to help the Beavers attempt to stay unblemished against Washington. The Ducks-Buffaloes showdown, however, shouldn't be nearly as competitive. 

This fall is becoming one of the most entertaining seasons of football in the Pac-12 in years. Three top ten teams, two unbeatens, a dozen Player of the Year candidates, one National Coach of the Year front-runner and arguably the biggest game left in college football about to kickoff in two weeks. This league is stacked with great coaches, great quarterbacks and great athletes. And most importantly, a lot of really good football teams.

The desert will be a busy place this weekend out West as both Arizona and Arizona State host huge showdowns. The Wildcats welcome Washington to Tucson in what should be a tremendous Xs and Os contest, while fans all over the nation will finally learn if Todd Graham's Sun Devils are a legit contender in the Pac-12 on national TV against Oregon on Thursday night.

Meanwhile, USC should roll, Oregon State has to hold serve and The Big Game takes over the Bay Area.

Pac-12's Top Storylines to Watch in Week 8:

At the midpoint of the 2012 season, it's time to take a look at the first half and predict how the second half will turn out in the Pac-12.

First-Half Awards

A huge injury to a player of the year candidate. A marquee top 25 showdown in a historic college town. A Thursday night primetime affair. And the former No. 1 team in the nation going on the road. The weekend of action out West has a little something for everybody, there is no doubt, so let's hope it lives up to the hype. On to Week 7...

Pac-12's Top Storylines to Watch in Week 7:

This weekend in college football was the biggest and most volatile to date. However, out West, Week 6 functioned more as an elimination weekend. Utah and UCLA have been all but removed from South Division contention. Washington proved it was still miles from competing with the North Division champs. And while Rich Rodriguez appears to have a solid team in Tucson, Arizona has started its conference slate 0-3, albeit in somewhat unlucky fashion.

USC and Oregon are still on a collision course for Nov. 3. Yet, both divisions appear to be much improved. And what's more interesting is the hierarchy shift in both the North and South that took place last week. Oregon State and Washington could be the top challengers in the North while Arizona State and UCLA look like the best bets to topple USC in the South. UCLA and Oregon State have must-win games this weekend, while Washington's season could be on the line in Eugene.

This league seems to get deeper and deeper each Saturday. After another stellar weekend of action out West, six Pac-12 schools now reside in the AP Top 25. Washington and UCLA slide into the rankings, while Arizona State is knocking on the door and Arizona is clearly another solid team. And as strange as it may sound, Cal might be the best 1-4 team in the nation.  

The 2012 season is turning into one of the best fans have seen out West in years and it has a chance to get even better. Oregon State and Arizona State made huge statements last week, but both have huge road tests this weekend that will prove if they belong in conference contention. Otherwise, all eyes across the college football world should be on the Pac-12 this Thursday evening.

Pac-12's Top Storylines to Watch in Week 5:

Oregon and USC used stellar defensive performances to get key home conference wins. Oregon State and Mike Riley shocked the country once again with an upset win over a ranked opponent — this time on the road — as the Beavers have added their name to the crowded North Division race. The Colorado Buffaloes got what could be its first and only win of the 2012 season in stunning fashion. But the most startling performance of the weekend has to go to Todd Graham and the Arizona State Sun Devils.