Does Aang counts as a super hero? I love the show, i grew up with it, you can see throughout the whole show how much he grows as a person and as an Avatar. He is so torn between his personal believes and his duties as the Avatar, he resolves it without compromising the first one. He is cute, strong, lovable, loyal and,without knowing it, he is one of the strongest character ever. And let's face it, the final fight is just AWESOME.
But if he doesn't actually fit into the super hero category i have a backup plan. Saitama from One Punch Man. He is so unface with everything and he is fearless. He may look naive but he has the mind set of a real super hero. He is funny,lazy, weird and overly powerful. The perfect combo if you ask me.