Sorry, I know that this comment is old, but I gotta ask, what do you see in Azy? She feels to milk toast to really stand out next to Brienne, Kiyoko, Agni and Cait as full blown female.
Brienne is too clingy. Plus, I don't like lactation, breeding, or pregnancy in general, so pretty much none of her fetishes really do anything for me. I also think the whole forced personality change thing sours her a bit for me.
I still haven't done Kiyoko, but given that she shares a bunch of the same fetish areas as Brienne, I anticipate her not being my thing.
I actually don't mind Cait. I really like turbo slut characters, and the scenes where my female champ and Cait go out and bang everyone and everybody in sight are actually pretty entertaining. The rest of her character, though, is kinda boring. Her normal sex scenes do nothing for me, and her character in general just seems a step down from Anno, who was just as slutty but still managed to also be an interesting character.
Agni....I don't have that much of an opinion on. I actually haven't done anything with her since release. I remember liking what there was of her content I guess.
Azzy's just really cute without being over the top focused on you, I liked her sex scenes, I like her venom addiction (wish it got focused on more actually), and I really like her bimbo scenes. Generally I like bubbly bimbo characters when they arent shown as being dumb and useless, and I feel that line is something Azzy's scenes toe pretty well.
Also, in general I'm partial to bug type monstergirls.