User blog comment:Auditore7/Michael's power/@comment-32856285-20121002001648

Fact: Leviathans are god's first beasts and they are the first of all creation and they were specifically stated to be older than angels (including Michael).

Oppinion: It's a good guess that Richard Roman or any Leviathan could easily and most of all literally eat Michael alive because of the chompers' immunity to angel power as well as the many capabilities a Leviathan could do to an angel. So thanks to Season 7, Michael is no longer the strongest. In my oppinion and in synced speech with Roman "Lucifer and Michael are on the menu".