Interesting factoid about
SUPERMAN:War of the Worlds, the Elseworlds tale featuring the Man of Steel defending humanity against the Martian Invasion. Was originally envisioned as a crossover with Dave Stevens'
ROCKETEER. With the rocket propelled superhero teaming up with Superman, as originally envisioned by Seigal and Shuster, on the night of October 30, 1938. The night of Orson Wells (in)famous radio broadcast of
WAR OF THE WORLDS, with the two dealing with the hysteria that night cause by the radio play. And a giant robot to boot. But it fell through due to the DC editorial staff wanting Superman and the Rocketeer to actually fight aliens in it. But Stevens felt it cheapened the story, so he pulled out. But DC got to do the
Superman Vs. The Martians they were interested in doing with the book you see there from writer Roy Thomas and artist Micheal Lark. It's a good read despite Dave Stevens misgiving over it. Anywho, here's the article on the
SUPERMAN/ROCKETEER crossover that almost was.
http://www.comicbookresources.com/?page=article&id=29312Also here's a kaiju match up that I'm kind of surprised wasn't done. Full Moon/Monster Island Entertainment two daikaiju in full on combat with each other, I'm talking about
KRAA Vs. ZARKORR.
http://www.youtube.com/watch?v=mw3AUVTTSHw&NR=1