User blog comment:B214/Shin DxD 1 discussion/@comment-34061653-20180926000306/@comment-2601:87:8300:20D0:5CBA:DD28:BF43:508B-20180926002955

It's hard to say because depending on the game Issei may have to fight multiple people. I predict something like for Issei would be Crom, Kiba and Rias plus Gasper. Rias would also face Grayfia, a vampire battle and Issei's knights vs Strada and Lint.

Roygun vs Akino

Koneko vs Ravel and Ross

I can't say for the rest and to be honest I may only be half right but this is my prediction so far. What does everyone else think?