I thought Arizona was struggling this season compared to expectations. I looked up their schedule and they really don't have that "big" win yet. Then I looked at their conference schedule: they face ISU, Kansas, and Houston one time each, with 2 of those at home. And they haven't played any of them yet.
So I really don't know what to make of Arizona yet. I know the computers like them, but nothing from the final scores/opponents really demonstrates how good they may be.
@Sigmapolis - could you elaborate why the computers think highly of Arizona?