Doom SlayervsHulk

Two of fiction's angriest fighters, and both have power that theoretically scales infinitely with their rage. The Doom Slayer has fought through Hell for eons, slain Titans, killed the Icon of Sin, and defeated the Dark Lord of the DOOM universe. His arsenal includes the BFG-9000, the Crucible blade, and Seraphim-blessed supernatural strength. He's been portrayed as an unstoppable force that even demons fear.

The Hulk, however, operates at a power tier that dwarfs the DOOM universe. In his most powerful forms, Hulk has held together tectonic plates, destroyed an asteroid twice the size of Earth with a single punch, and even threatened to destroy the Dark Dimension through sheer rage. World Breaker Hulk devastated the entire Eastern seaboard with his footsteps. The angrier Hulk gets, the stronger he becomes — and there is literally no upper limit to this scaling.

The Doom Slayer's weapons are devastating against demons, but the Hulk's durability has tanked hits from beings far beyond anything in the DOOM universe. He's survived blows from Thor's Mjolnir, Sentry's full power, and the combined attacks of the Illuminati. The BFG might stagger Hulk momentarily, but it would only make him angrier — and therefore stronger.

The real issue is that the Doom Slayer's power source is his rage, and so is Hulk's — but Hulk's rage-to-power conversion operates at a much higher scale. Both are functionally unkillable, but Hulk's physical strength in his rage-empowered state dwarfs what the Doom Slayer has demonstrated.