User blog comment:B214/Volume 23 discussion blog/@comment-76.175.162.45-20170402043409/@comment-31137559-20170402050304

Gabriel is one of the Four Great Seraphs and they are equivalent to the Four Satans in strength. So she would have the same strength as a Satan. And if Dulio was Heavenly-Dragon class then Issei would have been no challenge for him. I think that Crom Cruach's human form wasn't as powerful as him in his original state(as a dragon). And if Kokabiel was Satan-class then Vali wouldn't have beat him so easily. I know that the power levels between the leaders of the Three Factions are kind of wonky at best.