This show is really great. It used to be way better, but in my opinion it still beats most of the stuff on TV.
And it's really hard to decide between these two girls. I'm not quite sure about the precise meaning your question though... do you want us to choose between the two actresses or the two tv-characters or both?
If I had to decide between the characters, I'd probably choose Catalina. Between the actresses (whose real life character traits and streaks I don't know anything about) I could only decide due to their looks. And that's a pretty tough call. If you'd pull a gun on me to force me to choose, I'd probably choose Jaime Pressly.
Nadine is hotter, but her camera time has been vastly tuned down. I hope she will be more involved in the show again when the new season starts.
If there will be a new season at all. When it became obvious halfway through the running season, that the show's ratings probably won't recover and that on top of everything the economic crises had found its way into the world of tv, most production studios and tv stations started to cut costs. For some shows that meant killing of one of the show's characters, shooting more episodes on set or reducing the screentime of some actors (and along with that of course the importance of their character). My guess is, that characters like Kenny or Catalina fell victim to that.
