Goku's universal power scaling significantly exceeds Wonder Woman's impressive but more limited divine power.
Wonder Woman is one of DC's most powerful heroes โ divine strength, combat training spanning millennia, and weapons blessed by the gods. But Goku's power has escalated to the universal tier, which significantly exceeds Wonder Woman's demonstrated ceiling.
Diana is the better technical fighter by a wide margin. But the power gap at this level means technique matters less when the opponent can destroy the universe with a stray punch.
Wonder Woman's divine nature does give her a potential edge โ Goku has limited experience fighting magic-based opponents, and divine enchantments might bypass ki-based defenses.
Goku's power is universal-scale. His speed exceeds Diana's. Ultra Instinct provides autonomous combat. The power gap is too vast for skill to overcome.
Diana is the superior warrior with divine weapons and millennia of training. Her magic-based attacks could bypass ki defenses. The Lasso of Truth and god-killing sword are potent weapons.
Goku wins through overwhelming power scaling. Wonder Woman is an incredible warrior, but Dragon Ball's power creep has escalated beyond what DC's non-cosmic heroes can match.
Goku also fights
Wonder Woman also fights