Hill's best game was Houston. Threw for over 400 yards with 4 passing TDs, and ran for almost 200 (not counting sack yardage lost). Led the team to a comeback victory on a rare day when the defense wasn't playing well.
I also wouldn't worry about Hill's mental acumen...I think that's the silliest criticism of him. Go back and watch the games against Utah State and Hawaii his freshman year. He was moving safeties with his eyes better than the senior starting QB. Hill's issues last year were more with being too revved up by the speed of the offense than anything else. He'll be much more like he was in the Hawaii and USU games this year.