User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2602:306:CD9A:C860:A8A1:FFAA:5E5F:B79A-20181222095502/@comment-87.4.190.158-20181223012011

dependes from what you mean by "best". If you talk about power, Sairaorg is the best (I'm not considering Ise, just the pureblood devils of her generation as they were introduced in the first volumes), if it's about cunning that Sona is by far the best. If you are talking about taking care of ther peerage then Rias is the best.