User blog comment:B214/Question & Answers 5/@comment-207.87.40.22-20150521152829/@comment-208.168.246.118-20150521182055

Strongest to weakest:

Issei                                                                                                                                     Kiba and Gasper                                                                                                                   Rias and Akeno                                                                                                                   Rossweisse                                                                                                                     Xenovia and Koneko                                                                                                         Asia

I don't honestly think Kiba and Gasper are of the same caliber but I can't tell who's stronger because of Gasper (extremely cliche (in my opinion the bad kind of cliche)) power-up. Rias and Akeno yeah roughly the same. Xenovia and Koneko, same with Kiba and Gasper, I can't tell who's stronger so there I'm kinda of open to suggestions.

P.S. I hate Gasper's power-up because one, cliche (already said that) two, preferred him as a support type.