User blog comment:TheBlueSlug/Who should issei end up with?/@comment-1359322-20130725025341/@comment-16075832-20130725031513

Agreed

And what the heck is Rossweisse and Odin all about? He's an old man in human years and in appearance. "The will of God" even acknowledged his dream and refused to activate against him (granted the previous owner's hypocritical actions helped).

This is fiction so I'll answer your question, all of the them.

Akeno would never choose Vali (or any guy for that matter over Issei), neither would Asia, Koneko, Irina, Xenovia, or Ravel. Turning Issei into a one woman man is wishful thinking.