[the_chosen_one]

Strange point of view from Leslie. I'm wondering if it's mind games. (it's tricky with Leslie)

I would say that comment could serve two purposes -
a) It eases Charley's mind that she is actually attractive, like she thinks.
b) Take Emily down a notch because she knows she's attractive.

There is the possibility that Leslie sees Charley as more attractive than Emily, but I wouldn't agree.