Q: Aside from Superman and Captain America what hero is the most fitting representation of The United States? -- @white_dolomite
A: You know, just before I sat down to write this, I was reading some Judge Dredd comics and thinking about how fascinating the idea of Dredd as this distinctly, explicitly American icon, covered in eagles and flags and badges and guns and riding on a motorcycle that is also covered in eagles, flags, badges and guns is when you consider that he's a view of America created by people who aren't Americans. There's a lot that goes along with that, and it's fun to think about when you're reading through those stories and figuring out what defines them.
But when you get down to it, that doesn't mean that he's the best representation of the good ol' USA. Assuming you mean "hero" as in "protagonist" and not just as in "masked crimefighter," then the answer's easy. The quintessentially American comic book character is Scrooge McDuck.