For me I'd think I'd go for Let Your Hare Down, it really makes the most of its time as there are five jokes a minute (or so it seems), with the Lost parody, Herriman's aprutness, Bloo teaching him to have fun, and the ending is great. Fools and regulations is a very good choice, it gets increasingly ridiculous, Coco tries to ride a unicycle (hope I haven't spoiled that for anyone) and I liked how Bloo insists he's not breaking any rules
