Part of the problem, I think, may be that people just don't know quite what to make of the character, or have a clear sense of what he's meant to be about. Superman is the big shiny archetypal superhero. Spider-Man is the boy-next-door superhero. Batman is disturbed but driven. And the Martian Manhunter is... the guy third from the right in JLA group shots. Who doesn't like fire.