User blog comment:Jenses 4.0/Who Is The Greatest Villain of the Supernatural?/@comment-1509826-20121014173716/@comment-5619706-20121014214114

I find it nice that you actually took time to differentiate each of the big bad from each other because all of them had unique abilities, and circumstances with which they used or abused their power. Nice point that Lucifer is the cause of everything, even the inadverdent release of Eve and of the Leviathans.

One villain that seems to be overlooked though is Ruby. She is to Lilith as what Azazel is to Crowley. It's Lilith's plan, but it was Ruby who had to skate between the Winchesters and even suffered the hate of her fellow demons. In the end, she achieved her goal, despite her death. Also, she displayed numerous abilities not found in other black-eyed demons (except Tammi and Meg). She was a powerful spellcaster and even managed to fix the colt.