Smartest characters in dc and marvel

bruce benner
bruce wayne
tony stark
doctor doom
reed richards
lex luthor
amadeus cho

Only humans allowed (no omnipotent people, omniscient people, Watchers, robots, cosmic entities, etc.):
Reed Richards
Black Panther
Hank Pym
Tony Stark
Lex Luthor
Mr. Terrific
Batman
Amadeus Cho
Of course, I could be wrong. I'm not on this list.

Just to name a few: Tony Stark, Victor von Doom, Reed Richards, Lex Luthor, Ozymandias, and of course nigh-omniscient - omniscient characters.