User blog comment:Drakan95/Dante Alighieri vs The 7 Deadly Sins. Epic Rap Battles: Cartoons vs History. Bonus Battle/@comment-5264252-20160126040922/@comment-24322797-20160126041222

I'm almost certain that's never been confirmed and is just a whacky fan theory

I think the variety of nonspongebob characters was a bit more interesting than if it was just all spongebob