Hmm, I guess I would have voted for the Nameless Sister if I could - she was the most "good" being in the Void, helpful, kind, and caring.
The one I voted for is Eli. I felt her attitude to be the most "common sense", which I liked a lot, and well, her androgyny helped a lot too. And hey, it doesn't get much cooler than having a personal blimp!
Other ones I liked:
Uta - I'm not that averse to the "Ice Queen" attitude she exhibited at the beginning, nor to the "mystic" one, her vision of the world above was quite nice too. Loved her chamber - her Moon that she stared at from her hammock through that opening in the cave's roof, and the red sea - amazing.
Ole - she was sweet and gentle, perhaps even more lost than the player character, and quite "normal" despite the mystique and melancholy (the wedding dress) surrounding her.
Echo - I must admit I liked her, even the way she was talking needed some getting used to stop being irritating, and she was probably batshit insane. On the other hand, she had a fancy fan, and the INCREDIBLE outfit (the oh so ancient Greek tragedy high soles (very fitting to her personality/past?) + the dress tied around the ankles), and there was something about her... Again, interesting vision of the world above.
(BTW - does anybody know if there's is a way to meet Echo or Aya in a chamber like any other sister, or? I remember seeing a trailer where the camera approaches Echo standing in front of I think the red sea at Uta's, but couldn't never see it in-game, even though they sometimes stopped by other sisters' chambers, they never seemed to appear within... I'd really like to see Echo's and Aya's outfits on the 3D models. The version I played is the Polish Tension.)
Ire - OK, reason says I shouldn't be liking Ire. She was vain, spoiled, overly voluptuous, would have sold her own mother for some candy, and probably a bit silly.

But on the other hands, well, boobs, she was unashamed of who she was, simple and straightforward, boobs, and I guess good to have fun with, also boobs.

(Legs too!) Her face kinda reminded me of Marg Helgerbermengeleberger from CSI.
The ones I was mostly indifferent to:
Yani - I don't think I understood this character well. She's certainly cute (her dance, and those fairy wings), but too childlike, and with some dissonant dark component. (Jealous of Ole?) I need to pay more attention to her next time I play, though.
Ava - The classic dangerous babe, femme fatale, catwoman - she's certainly likeable, just not my type.
Aya - She proclaims herself as some wicked one, except... the Sister encounters are just dialogues, so we don't get to see her wickedness in action. So I couldn't quite connect to her and perhaps love or hate her for her attitude.
The disliked ones:
Una - She seemed to me the "religious zealot" ( not the right word, don't know how to put it) type...
Ima - I'm really surprised she's leading in the poll, to me she was the least appealing. I saw her as the willing victim/martyr suffering for the whole world's sins, melodramatic girl willing to bind herself with chains of her own creation.
Edit: I'll certainly agree with all the Karin Dreijer love here.
