SkunkyArt | 100fire451 — Ghost Rider VS Spawn

Both are demonic, undead, black-clad comic book anti-heroes.

Initially normal humans, both were confronted with a bad situation that led them to make a deal that involved selling their souls to powerful demons for the sake of their family (Johnny asked Mephisto to cure his adoptive father of cancer, while a then-recently-killed Al in the Eighth Circle of Hell accepted Malebolgia’s deal to lead his armies in return for resurrection to reunite with his wife again), only for things to not turn out how they expected (Johnny's father died soon later anyways in a stunt accident, while Al lost his memory of who he was and was reborn five years after his previous death) and them to become reluctant servants to the demons they made deals with.

Both are immortal to a nigh-unkillable degree, use chains and specific firearms as their primary weapons, are only vulnerable against holy weapons, and make use of a hellish substance that feeds off their enemies' sins (Hellfire and Necroplasm, respectively).

Both can subject people to experiencing every amount of pain they've inflicted throughout their entire lives (via the Penance Stare and Necroplasm, respectively).

Both eventually rebelled against and overthrew their masters, temporarily taking the title of King of Hell as a result.

Both their resurrections and powers are due in part to unions with other entities (Johnny was fused with Zarathos and Al wears the symbiotic Leetha of the 7th House of K).

Both are parts of long legacies, as there are others in the past and future who have possessed the title Ghost Rider and Spawn.