Superman

The provided sources do not contain any information about Lex Luthor’s intellect or how it influences his effectiveness as a villain, so we cannot determine whether his intellect makes him a better villain.

Lex Luthor's key villainous strategies center on his unmatched human intelligence, vast corporate wealth, and manipulation of politics and technology to defeat Superman and assert human supremacy over superhuman power.

Lex Luthor's relationship with Clark Kent as Superman's archenemy defines his villainy: he sees Clark as a symbol of everything he opposes—superhuman power and selflessness—fueling his belief in human intellect and ambition over superpowers.

Lex Luthor remains DC Comics' primary Superman antagonist across comics and animation, typically portrayed as a brilliant, power-hungry human genius whose core motivation—asserting human intellectual supremacy over Kryptonian power—remains consistent, though animation often emphasizes his charisma and political cunning for dramatic effect.