Oil's Well That Ends Well
Unlike Metaldams, whose opinion I repsect, I'm glad (and surprised) that Quiz Whizz is not in the finals. That one starts off okay, but becomes dreadful to watch once the Stooges dress up like little boys. I hate Joe's scene where he's forced to eat a cigar.
Both "A Merry Mix-Up" and "Oil's Well That Ends Well" are fine Besser shorts. Having watched them both recently, my decision was quite easy. "Mix-Up" is clearly the more creative one, but "Oil's Well" is the funnier one, and the one I would show someone who had never seen a Joe Besser short before.