Goku vs. Doom Slayer: Why Ultra Instinct Still Wins This Fight

Goku wins this one, and it comes down to speed and scaling. Doom Slayer has some genuinely insane lore behind him, including kills that sound god-tier on paper, but Goku has the demonstrable feats to back up an even higher level of power, and Doom Slayer really has no way to counter his speed.

Goku's Power Has Scaled From Super Saiyan God to Ultra Instinct

Way back when Goku first achieved Super Saiyan God, he was able to battle against Beerus, and their punches were sending shock waves from Earth all the way to Supreme Kai's realm, threatening to destroy the universe. That was forever ago in terms of the story.

Since then, Goku has had years of training and multiple amps in power, and now he has reached true Ultra Instinct. He retains his emotions and uses them to channel his power, and with that form he has overwhelmed beings like Gas, Moro, and Granolah.

Ultra Instinct Goku's Speed Makes Him Nearly Impossible to Hit

It is not all just strength and power for Goku either. He is insanely fast too, with instantaneous teleportation and automatic reactions. Combined with speed that is infinitely faster than light, it is nearly impossible to actually land a hit on him.

Doom Slayer's Divinity Machine and Arsenal Make Him Nearly Unkillable

Doom Slayer started out as just a marine battling against demons, but he has absolutely insane lore and power surrounding him. He has been fighting against the forces of hell for eons, and he was amped up through the divinity machine in his current and his prior suit, which makes him almost impervious to damage, with terrible power and speed.

He also has a massive amount of weapons at his disposal, including shotguns, rocket launchers, plasma rifles, and the BFG9000.

Doom Slayer's Biggest Feats: Killing the Icon of Sin and Davoth

Slayer's two biggest feats are killing the Icon of Sin and Davoth. The Icon of Sin's mere presence could collapse all of reality. Davoth is described as the being who created all of reality, legitimately a godlike figure.

The catch is that while you can scale Doom Slayer up to some pretty insane levels based on those kills, the games never actually show Slayer fighting at that level. And Davoth specifically was betrayed and weakened during their fight.

Why Goku Still Comes Out Ahead

Besides all of that, Goku still massively outclasses Doom Slayer in pretty much every way with Ultra Instinct. Goku is a universal level being at the very least, and most importantly, Doom Slayer really has no way to counter Goku's speed.

Doom Slayer has some crazy lore behind him, but Goku actually has the demonstrable feats and scaling to match it. That is why Goku takes this one.