Rene asked: What are the girls' favorite treats? What do they dislike the most (brushing, nail clipping, etc)?
I'll start with what they dislike. I'd say that, for both cats, having their teeth brushed is at the top of the "most loathed activities" list. There is squirming, flailing, biting, and occasionally growling. It is miserable for everyone involved.
It's funny you should ask about the treats, since I just finished putting together a post about Melly's deep and abiding love for freeze-dried chicken. Scarlett never cared one way or another about treats until she saw how much Melly liked them, but she seems to prefer the freeze-dried chicken too. And since we're on the subject, here's the post about Melly and her beloved chicken:
Because of Melly's obsession with freeze-dried chicken, the bag of treats is normally kept hidden, but recently, I got it out to give Melly a reward for some especially good sitting. After I was done, I put the treats in the bowl on top of the hall shelf, and Melly took it upon herself to retrieve them.
And then she spent about 5 minutes trying to open the bag while Scarlett unhelpfully sat nearby and watched.