Sure Auburn has a high scoring offense. Almost as high as the Ducks! Auburn D has allowed more points against as well. On paper, Ducks look better. On the field, Ducks have looked better for most of the season. They started playing sloppy towards the end, with an embarrassing close win against Cal (at Cal though), and a messy win by 17 (not close) against Oregon State, but then again Auburn had at least 4 close games, with 3 being against unranked teams at the time.
If Oregon can play like they played the first 3/4 of the season, I really like their chances. If they stay sloppy, Auburn will take advantage.