Would go with Cactace. BB disgusts me, and I have all the other girls.
However I decided to not spend more money on this game unless its an "OMFG" deal, so nah. (30 bucks nets me 3 count as Centurions for my fluff oriented Imperial Knight Space Marine army, so..) no thank you.

Wutan - Mei is Waifu, and she has a pretty good Bloomed form.
She herself has good stats and 3,6x Damage on single I think. Not the strongest 6* but by far not the weakest either.