Okay, I'll play for real.
I'm a traditionalist. I've only probably missed maybe 3 seasons tops, but I still think the best was Colleen.
She may not have been the MOST attractive (although she certainly is - I think maybe Janu was the most attractive to me), but personality-wise...smiley, funny, and smart. She was one of the first of the "kids" to wake up to the fact that...hey...they were playing a serious game after all, and they were getting screwed. Still I like that her and...Greg, was it?...were playing up the "relationship" for the cameras...although I suspect it wasn't all an act.
I would still date with her.