Evan Dorkin'sSuperman and Batman: World's Funnest by Evan Dorkin and Friendsis, without a doubt, a fantastic piece of comic deconstruction; featuring fun, satirical writing, great art, and a serious sense of gloriously twisted nihilism.In a nutshell, Superman and Batman's extra-dimensional nuisances, Mr. Mxyzptlk and Bat-Mite, get into a squabble that takes them across many of the various dimensions of the DC Universe, largely drawn by their original artists. Earth One and Two are here, as are Frank Miller's 'Dark Knight' Universe, Alex Ross and Mark Waid'sKingdom Come, and a plethora of others.To say more would be to give away the plot. Suffice to say that Dorkin's allowed free reign, and uses it to spectacular effect.The only caveat I'd make is that it's best to be well aware of the history of the DC Universe before reading this. It's a graphic-novel-length in-joke, really. But such a joke it is! I couldn't recommend it more. Loved it.