Just as a side note, you know why I loved Ledger? Even with all his quirky movements and "over-the-top"ness, I could still imagine him making an omelet.
That's kind of how I gauge performances sometimes. Actors are often so caught up in becoming a "character" that they often forget to be human. I hav this issue with many villains these days. Villains that are portrayed in such a way that I can't imagine them doing anything else but being villainy. Like when you're not being an asshole, what are you doing? If I can't really imagine that then I can't really get behind it. Which is why, all things considered, this guy:
worked very well as a villain. He played that part perfectly.