User blog comment:EmpyreanSmoke/Supernatural Q&A/@comment-168.169.25.92-20150926203317/@comment-24834479-20150926210759

1. I don't think Leviathans have ranks like angels do, so I think that all leviathan would be able to negate archangels, as well as eat them. However, Archnagels could still beat leviathan, should they not act quick enough or smart enough, as a lot of them do.

2. Cain is not stronger than the archangels, he just could not be killed or beaten by them. Powerwise, Archanhels are stronger.

3. I don't know if they are stronger than Seraphim, but they definitely can't be killed by them.

4. I don't think that he did, but with the new season coming up, that is something we could definitely add, if it fits that is.