User blog comment:General MGD 109/Who's the strongest demon/@comment-207.126.210.191-20140122203142

I would say that Cain is the strongest demon ever to appear in the show. The demon killing knife had absolutely no effect on him, as it did with abaddon and alastair(where you could see the wound flicker while the knife was in them.) H could also kill demons with ease. So that should put him above even lilith and azazel and alastair.