[quote name='willardhaven']Clock King would be a sweet villain for the third film, but that would never happen. Clayface, Freeze, Ventriloquist or Penguin would be good. The Riddler would be stupid since they just did Joker. Having Harley would be good for the guys to look at, but she doesn't fit Nolan's Batman.[/QUOTE]
I think Harley could fit better then Clayface, Freeze, Ventriloquist and Penguin. I'm not sure about Clock King because I don't remember him. All they would need to do is make Harley more like a female version of the Joker. Remember Nolan is trying to make this work in reality as much as he can.