User blog comment:Bharatram1/Who is stronger ? Lilith or Azazel ?/@comment-128.223.223.109-20140524202630

This is how I see the heirarchy (excluding Cain and the Knights of Hell, who's positions are ambiguous), though I'm mainly using evidence I've seen:

White-eyed demons: Probably the oldest and most powerful. Lilith, Alastair, and Samhain (I think he counts as one) all seemed to be able to overpower regular angels (both Lilith and Samhain were avoided by angels directly). All likely had a resistence to the knife, despite Lilith's fear I doubt it would've killed her. Also both Lilith and Samhain could use the powerful white light. Lastly, Lilith was implied to be immune to holy water, and Alastair seemed to be pretty resistant to it as well even if it did hurt him.

Yellow-eyed demons: Though Azazel was the only one to appear (and may be THE only one) he seemed to be much stronger than other demons. He was completely resistant to holy water, something even some white-eyed demons don't have, and it seems like only the colt could do anything to him. Since he died before the knife was introduced, we don't know if it could kill him, though I wouldn't be surprised either way, the same goes for regular angels. He seemed to have a position of leadership among the demons and (as surprisingly nobody has yet pointed out) didn't seem to find his leadership threatened by releasing Lilith from Hell. Lastly he seems to have been around long enough to have known Lucifer and know about angels. I'd place his level as equal to white-eyed demons or slightly below them.

Crossroads demons: Though they don't seem to be fighters, Crowley seems to be quite a powerful demon. Crowley was able to overpower even the strongest black-eyed demons with little trouble and even seemed confident enough to fight an underpowered Cas once. He also makes a point to avoid the knife, but it's unknown if it would kill him though it's probable. Crowley however seems to be stronger than other crossroads demons, and the only one who really uses his powers for anything other than making deals, so it's unknown where exactly they fall into the hierarchy. I doubt however that Crowley is stronger than any white-eyed demons or Azazel.

Black-eyed demons: They seem to have the mose varied skill level. It seems like only the weakest demons are unable to enter hallowed ground. All seem to be affected by holy water, angels, and the knife, but higher up ones seem less effected by salt and iron. Meg, Tom, Astaroth, Brady, Father Gil, Casey, and the Airplane demon all seemed to be much more versatile and harder to defeat than others. Ruby however seemed to be one of the weaker demons as she was often overpowered by others at a similar level to her.

I'm guessing that the Knights of Hell are slightly below white and yellow-eyed demons, but Cain seems to be a special case demon. I'm wondering if he is even fullly a demon as he seems to have much more humanity than others and some have suggested that his vessel might be his original body.