Daffy Duck. Howard's Quack-fu would be useless if he couldn't catch Daffy. You know, he does that "woo-hoo, woo-hoo!" call as he bounces away toward an unpredictable location. Howard could never catch up. Plus, Daffy is the funniest, hands down. Any character that can still maintain a loyal following after 60+ years has gotta be doing something right.