User blog comment:BackToTheFuturama86/BTTF's ERBoVillainy Pre-Pilot (Again)/@comment-5482968-20150206004202

Darth Vader vs Khan Noonien Singh

HAL 9000 vs GLaDOS would be an easy pick, tho you may have other ideas.

Carrie

I don't know much about horror/villains, but ye.