User blog comment:General MGD 109/Who's the strongest demon/@comment-76.115.13.122-20140916042753

1. Lilith: basically confirmed. The writers even said that nobody in Hell other than Lucifer can match her.

2. Azazel: has more immunities and is higher ranking than Alastair.

3. Alastair: is immune to the knife and can defeat some angels.

4. Samhain: angels seemed to fear him, he could summon monsters, and he resisted Sam's powers.

5. Abbadon: extremely powerful, knight of Hell.

6. Crowley: cunning, much stronger than most demons on the show, variety of powers.

I left out Cain because I haven't really seen his episode yet.