Omni-Man's superior speed and flight give him the edge, though Kratos's god-killing arsenal makes this closer than expected.
Both are brutal warriors who have slaughtered their way through entire civilizations. Kratos has killed the entire Greek and Norse pantheons, wielding divine weapons and possessing godlike strength and durability. Omni-Man is a Viltrumite who helped crack a planet and fights at faster-than-light speeds.
The speed differential is the deciding factor. Omni-Man operates at FTL speeds in combat, while Kratos, despite his incredible reflexes, has never shown comparable speed feats. Omni-Man could deliver thousands of devastating blows before Kratos can properly react.
However, Kratos has killed beings far more powerful than Omni-Man on paper โ Zeus, Baldur, Thor, and Odin from the Norse realm. His weapons like the Blades of Chaos and Leviathan Axe carry divine power, and he has survived attacks that would destroy mountains. If Kratos can land clean hits with his divine weapons, he could genuinely hurt Omni-Man.
Kratos has killed multiple pantheons of gods, possesses divine weapons that harm any being, and has durability feats that include surviving attacks from Zeus himself. His rage and combat experience against godlike opponents are unmatched.
Omni-Man fights at faster-than-light speeds and helped crack a planet's core. His aerial mobility gives him angles Kratos cannot easily counter, and his combat speed vastly exceeds anything Kratos has faced.
Omni-Man's speed advantage is the deciding factor, though this is closer than pure stats suggest. Kratos's divine weapons and god-killing experience keep him competitive, but FTL combat speed is an advantage he cannot overcome.
Kratos also fights
Omni-Man also fights