Ivy, Harley and Mr Freeze and catwoman are bad examples IMO because they have pretty big track records of strong moral fiber, doing the wrong thing for right reasons. Admitted that's why most fail because comics tend to try to have villains be at least somewhat sympathetic and believable and sometimes even a bit likable.
Harley and Ivey don't deserve this!
That's how I felt about the penguin.
Edit: all of them. Let's make them all someone stupid like Clock King or Sin Fang.
Ivy, Harley and Mr Freeze and catwoman are bad examples IMO because they have pretty big track records of strong moral fiber, doing the wrong thing for right reasons. Admitted that's why most fail because comics tend to try to have villains be at least somewhat sympathetic and believable and sometimes even a bit likable.