Hello, I'm an expert in comic book lore and superhero narratives. When it comes to Superman's most iconic and enduring adversary, the title belongs to
Lex Luthor. Lex Luthor is a supervillain appearing in comic books published by DC Comics, commonly as the
arch-nemesis of Superman. Luthor is a power-hungry billionaire, a scientist, and a criminal mastermind who continually seeks to outsmart and destroy Superman, often driven by his own jealousy and hatred for the Man of Steel's god-like powers and his status as a hero.
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