Okay, now that V.0.1.5 / the parlor is out, the best Girl per type (in my opinion) needs an update. All the girls are based off meeting in the world, not simulating the encounter.
Human: "Gamergirl." While I like the professional vibes of the Assistant, I personally like the Neet/Girl-Failures more. Also I like the act of eating the cake over a titfuck more.
Furry: Trash panda. I already liked her before the update, and now she has more content? And said content add the possibility of her being pregnant when/ IF the pregnancy update happens, thus adding even more content? All I ask is for the ability to give her a kiss/head-pat/hug IF she is able to be invited to the base, and my life is yours. High A -> S tier.
Robot: ST Patrol Droid. I don't know if intentional or not, but after leaving the backrooms through the sewer, you can go back into the fiscality and fight without actually entering (IE, doing a delve and passing time upon leaving.) Even without doing that, you can still interact with her with the Tram from base, so she isn't that far away. And while I like all the robot girls, she stands out to me.
Demons: Cult Matron. While I do like the demons in the parlor and I can't naturally interact with her anymore, I still love Goat mommy.
Monster: It is a tie between the Crawler and the Alternate. What can I say? I like big women whom I will knock up without a shred of doubt, and walk back to do it again and again.
Scaile: Chemist. Pheromones/Musk are my weakness, and I like how she is a sub that is unaware of how she is making me down bad. Also how she was made because of a silly suggestion will always stick with me.
Undead: "Stitches." Sure, a lot of undead are more direct and choose their allotted 1 word a second very carefully, I still like how she speaks. I also like her design, how her limbs are effectively heled together with a mix of wire and staples, how she is a Amazonian woman that wants snu-snu.
Of all the girls, the ones I'd put a ring on would be Trash-Panda and Mal0.