To many fans, Batman is the smartest superhero of all time. His brains are matched only by Superman's brawn, and together, they're the World's Finest. But what about Reed Richards? What about Mister Terrific or the Atom? If Batman's so smart, why isn't he flying around in a suit of armor akin to Iron Man?
Even if Batman is the smartest superhero in DC, is he more intelligent than the smartest superhero in Marvel? It's seemingly impossible (without the help of one of these incredibly intelligent heroes) to judge who exactly is at the top of the smartest superheroes list. But, when comparing their accolades, inventions, and the results of their various in-universe intelligence contests, it starts to get a little clearer as to which of these heroes is the smartest of them all.