I know a lot of forum members won't know her, but I would have to choose Gia. For those who don't know anything about her, a review of her retired threads would help.
Now, why would I choose her?
1. She was a mature woman. She was in her later 20's, early 30's, maybe. Not like the children that most of the female tenants are. Gia has already developed as a woman...as opposed to someone like Elena, who was just learning what it is like to live away from her parents.
2. Speaking of being developed as a woman, that was the basis of my frustration when watching Gia. She had developed some characteristics that bothered me a lot.
A. Her avoidance of getting naked...on cam and even around Ian.
B. Her tendency too talk to much (and get mad at Ian when he didn't appear to be listening to her).
C. The way she treated her dogs.
But I would welcome the challenge of changing these characteristics. I know I could make her totally enjoy getting naked...show her natural pubic bush...have uninhibited sex. I would teach her that sometimes I just don't want to talk to her and that she should respect that. I would let the poor dogs out of the toilet, let them have free run of the apartment, make them a full part of the family.
Oh, and I would make sure all the knives in the apartment were blunt and dull. ;D