I have both at 3/70 and have enough to ascend only one. Their defense and hit points are close with Mitsuko (727 Defense 1450 HP, average) edging out Marjana (712 Defense 1405 HP, Fast).
Does Mitsukos higher Defense make her a more suitable tank or does Marjanas fast speed make her more suitable? They both have an A grade for Tank. Please help and thanks in advance.