Goku would win against Zeus.
The power scaling between Dragon Ball's Goku and the mythological Zeus heavily favors Goku. Goku's feats of strength, speed, and energy projection far surpass anything attributed to Zeus in mythology.
- Power Levels: Goku, especially in his Super Saiyan forms (Super Saiyan God, Super Saiyan Blue, Ultra Instinct, etc.), possesses power capable of destroying planets, solar systems, and even universes.
- Speed: Goku's speed is immeasurable; he can move faster than light and even transcends time in some instances.
- Durability: Goku can withstand attacks that could obliterate planets and survive in the vacuum of space.
- Techniques: Goku has a vast array of techniques like the Kamehameha, Instant Transmission, and Hakai (Destruction) which are devastating to his opponents.
Zeus, while a powerful god, is limited to manipulating lightning, controlling the weather, and possessing superhuman strength and speed within a planetary context (depending on which version of Zeus is being referenced). He isn't on the same scale as Goku, whose powers extend far beyond planetary or even solar system level. Basically, any of Goku's signature moves, performed with serious intent, could likely defeat Zeus. Super Saiyan transformations simply create an even more decisive advantage.
Therefore, Goku's overwhelming power, speed, and arsenal of techniques would make him the clear victor in a fight against Zeus.
