The juxtaposition of modern fighter planes with prehistoric dinosaurs is brilliant! I laugh every time I see it. Only the mind of a child could come up with that... wait... or Waterston!
One of the best parts of calvin and hobbes to me is the unclear nature of Hobbes. Is he just a stuffed animal and a product of Calvin's imagination? Or, as in the play/movie Harvey, is Hobbes' true (supernatural) nature only seen by Calvin? I favor the latter. In rare interviews, Waterston has been vague on the subject... which I appreciate.
Art, as in humor, loses something special if explained...