User blog comment:Twilight Despair 5/Abaddon as the Season 9 Big Bad?/@comment-82.34.210.166-20130417043649/@comment-25358468-20130417053042

I'm pretty sure when Kevin says, "Banish all demons off the face of the Earth, lock them away forever," he means that they'll be stuck in Hell FOREVER, NO LOOPHOLES.

I'm pretty sure a Knight of Hell is much stronger than a Crossroads Demon, as Abaddon was extremely powerful and active, whereas Crowley runs at the sight of an Angel.