The reason why I prefer superheroes (Batman, Leon S. Kennedy, Iron Man, Jason Bourne, Aragorn etc.) who are human and have no superpowers to those who do (Superman, the Flash, Green Lantern, etc.) is that I’m able to relate to them.
I’m able to relate that you are limited by your own “humanness”; that you can’t win all the battles in your life – but you can win all the battles that come within your reach. You don’t need superpowers to save the world; all you need is brains, some brawn, and good old fashion will power.
Although at the rate that my life is moving forward right now, I would appreciate a superpower – or two!