Auburn would play Oregon tough. That games a toss up in my opinion.
I think Oklahoma would be a solid matchup. A ton of points would be scored in that game.
And this may come to a surprise to some, but I think Boise State matches up well with Oregon. I think that'd be a pretty good game as well.
I still think Alabama would beat Oregon. Tough team who can line up and run the ball as well as stop it. Plus, they're more talented, and defensively, better coached. Would love to see an Oregon vs. Alabama match up.
Basically, any team that can score and score big would be a tough matchup for Oregon. Especially one that can run the ball. That's why USC is probably going to wind up being their toughest test.