User blog comment:Auditore7/Michael's power/@comment-32856285-20121002001648/@comment-3481504-20121003193431

Here's why I find it implausible for Dick or any other Leviathan to be stronger than Michael. For one thing, Michael's the strongest Celestial being, and naturally, normal Angels outclass all beings but Leviathan (and maybe possible the Alpha Vamp), and seeing as Archangels greatly surpass from Angels, it would be reasonable to assume that Michael is more powerful than Dick Roman, and in turn, every other Leviathan. And even 'if'' Leviathans are immune to Archangels' abilities, typical abilities, like Super-strength (as evidenced when Castiel held Dick in place) Michael could just rip off one's head, using Super-strength, and touch the goo, and evaporate it.