It's simple. Which superhero's origin story do you like best and why?
Personally, I like the Teenage Mutant Ninja Turtles origin from the comics. It did lend some of its influence from Frank Miller, and I like the idea of incorporating turtles, science fiction, and martial artists into a comic story.
Green Lantern; No matter which one you're a fan of, the concept of a hero being picked simply because they won't back down or ever show fear is pretty awesome. That someone like Kyle or Hal just simply won't let their fear get to them and that is the greatest weapon in the universe really appeals to me for some reason.