Not the gamma-irradiated monster.
Not the god.
Not the super-solider.
The regular human. The one with no superpowers or otherworldly pedigree. The man.
He's a hero, in the end, not because he had a suit of armor, but because he broke his needs and wants upon it. He took that suit to the cross. He gave himself up to death. That didn't take anything more or less than goodness. Not intellgience, not strength, but goodness. Charity in the literal sense.
"Greater love has no man than this, that a man lay down his life for his friends." (John 15:13 RSV)