BYU's best win (Boise) is better and more convincing than anything from Oregon. Oregon came very close to losing to a bad UCLA program and has only played 3 games, with its best win against a mediocre Washington State team.
How do you objectively put Oregon ahead of BYU? That will show a lot of bias of they do so. Oregon had some hype coming into the season, so we will see how much that sways it.