All superheroes are Christ figures, to a degree. Some are more distant echoes than others, of course, but all have one similar characteristic: someone more than we are, someone special and more powerful, come to help us. Superman in particular stands out: an extraordinary not-quite-human child, sent by his father to be raised by human parents, who died and was reborn.
But comic-book superheroes only save a certain kind of people.
The Generous Grasp 