Desdichado
Hero
I dunno; I think he's always been kinda cool. The fact that Orcus and Graz'zt are right behind him suggests more of a nod to iconic D&D tradition than anything else.
That said, I do think recent material has made Demogorgon cooler than he used to be.
That said, I do think recent material has made Demogorgon cooler than he used to be.