User blog comment:B214/Talk About What You Want! 2/@comment-24098614-20140704004516/@comment-1359322-20140704005900

Issei isn't a child anymore, the him right now understands the purpose of a peerage. Peerages aren't meant to be a Harem, they are meant to be a efficient team that is use to fight, whether in Rating Games or real battle.

If Issei was just seeking for an all female peerage, his peerage definitely won't be strong, it won't be weak but it won't be strong either. Take Riser for example, his peerage are all females because he targeted females only, taking into consideration and all, his peerage isn't weak, but if you compare it to an efficient group like that of Rias, Sona and Sairaorg, Riser's peerage is definitely below par.

In the end, the important essence that Issei needs to seek for his future peerage is ability, talent and potential, there's no point at all. Riser chose gender over this essence, that's why his team is only average at best.