currently using the sagsuki i use for geburah on my team because it was better for this season than ayanecopter who died instantly upon spawning, i can afford to get ONE (1) student from naked 3* to UE50 with max gear and skills, i read that minori, hibiki and nagisa are virtually used on all PVP seasons but it seems it's one of those cases where neither is better than the other on paper and people use whichever they raised for that one raid where they excel at.