User blog comment:General MGD 109/Who's the strongest demon/@comment-86.152.141.13-20120418215906

Lilith. she is the first demon and is therefore one of the first humans too which makes her knowledge about the universe extensive, as proved by the fact she knows all the seals. azazel is strong (probably the 2nd strongest in the series) but is almost definately weaker than lilith. He is possibly has a closer connection with lucifer which is why he has such great authority. Maybe azazel is like a demon equivilent to the pope while lilith is seen as hell's monarch. However, both are invunerable to salt, holy water but azazel has never shown he can't be caught in a devil's trap, nor had lilith. it is confirmed azazel is vunerable to iron and lilith is too most likely. no one has ever stabbed either with the knife so they may be vunerable or (more likely) it just hurts them alot. However, liliths power is also most likely greater as all demons are terrified of her as she is very sadistic. Alastair is only second rate as he is vunerable to salt, holy water, iron, and he clearly works for lilith and fears her. hes just very strong, intelligent and invunerable to the knife. Crowley is most likely third most powerful as he is liliths right hand man and is king of the crossroads.