Fantasy Superheroes

A common criticism of later editions of D&D from fans of older editions is that they produce "fantasy superheroes." I don't agree with that characterization. In fact, I wonder why we don't see many rpg examples of fantasy superheroes because, like Stargazer here, I think it could be an interesting idea.

For clarity, I don't mean characters in a fantasy world that have secret IDs and codenames and fight crime wearing costumes--though I think a Zorro or Iron Monkey sort of frame of masked fighters for justice could easily fit what I am thinking of. Mostly, though, I'm just thinking of comic books like Battle Chasers or Dreadstar (the latter is really space fantasy, but its basic setup is a useful example) and animated series like He-Man and the Masters of the Universe (2002, particularly). Epic fantasy stories featuring super-powered characters. 

So what makes those examples "superheroic" in a way a 4e campaign isn't necessarily? In Superhero: The Secret Origin of A Genre, Coogan lays out his "MPI" definition of a superhero. That is, a superhero is a person with Mission, Powers, and Identity. He also has the fallback of "generic distinction" to catch characters (like the Hulk) that might fail by the initial test and to exclude characters that might seem at first blush to fit but are better accounted for in another genre.

Regardless of whether the fantasy heroes I'm thinking of would be superheroes in Coogan's estimation, I'm think about characters that:

• Have a mission, which might be something like "defeat Sauron," but could be something more like "overthrow the God-King who betrayed us." This wouldn't be the place for picaresque wanderings or "get rich or die trying."
• Have powers that are beyond reach of regular folks to a notable extent. Those powers would tend to require explanation and come with an origin of sorts. That could be as simple as "born an air bender," but whatever it is, it would set a character apart from most people. While this pillar is where there is the most overlap with modern D&D, I think D&D's approach to powers that largely makes then originless (other than being a particular class) and outside of spells, more an artifact of game rules than a setting element, fails to place it within the proposed genre.
• Have an identity, in the sense of being distinct, likely from other heroes in the party, but certainly from broader humanity. The difference between characters a normal D&D party is something like the difference between the members of the Fellowship of the Ring, but here the difference would be more like the differences between the members of the X-Men or Legion of Super-Heroes. I feel like a lot of identity is in a distinctive visual, but that probably comes from this subgenre being mostly a thing of visual media. Still, I feel like it would be something to think about in an rpg.