Nobody's favourite is always somebody's favourite. J'onn J'onzz AKA the Martian Manhunter is one of my very favourite superheroes. First of all, he's a green man from Mars! He can read your mind, change appearance, go intangible, turn invisible, is super strong and can fly. In fact, he sounds like perfect boyfriend material to me! J'onn's become quite well known of late, thanks to his prescence in the Justice League cartoon. Alas, he never seems to be able to support his own comic for long. Grant Morrison and Mark Millar set him up as a Southern hemisphere Superman, with multiple secret identities- one of which was a cat! Of course, the next writer assigned to him pretty much dismantled all that stuff, and he's been subjected to a couple of rotten revamps since (and one okayish one). I've tinkered with him a little bit, but he's still recognisably the 'Alien Atlas' from the red planet!