Master Crimzon
Baby Killer
To be honest, yes, I feel the comparison would be justified- Jack Nicholson's Joker is considered to be one of the greatest comic book portrayals ever (until Heath came along, at least), and was still remembered as one of the greatest cinematic villains. Sure, he wasn't as iconic as Hannibal or Vader, but he was still considered to be very, very good.
Then Heath came along. Seriously, even generally cynical movie critics are raving about his performance and his role; I like Vader, and I like Hannibal. But Heath's Joker is an amazing piece of cinema, and to be honest, I can't find a reason why it's not as good as Vader or Hannibal.
I've never actually properly explained why I like Heath Ledger's Joker (and the comic book Joker, in general) so much:
-His attitude towards dying, getting beaten up, and general. As Alfred said, 'some men cannot be bullied'; and I find the most unsettling villain to be one that doesn't care what you do to him. The Emperor from Star Wars, for example, who is one of my favorite villains of all time, was still very much afraid of death- but Heath's Joker just laughs maniacally when he seemingly plummets to his death and when Batman beats his sh*t up. I find that truly unsettling.
-His maniacal love for chaos. I mean, once again, it's quite incredible to see a villain with no motive other than watching people running, screaming; total anarchy. As the comic book Joker once said, "I do violence because it's fun!". Heath Ledger's Joker is very much the same, and the pleasure he finds in killing people is... creepy, to say the least.
-Heath's charisma and acting. I don't think I need to go on.
-His ideals towards rules and all. It makes you wonder... are rules truly necessary? Life is a joke? Would you murder someone if you could? You can't help but thinking of these things while watching the Joker and TDK in general. Oddly enough, I found myself wondering if people can be like the Joker if there were no rules in the world.
-Finally, how he is completely in control of everything within the movie, despite him not following any rules and his attitude towards scheming and such. By letting go of rational thought or planning, he's much more in control of things than Batman, Harvey, or Gordon.
I think I've listed my reasons for why I think Heath's Joker was so good.