Originally Posted by Nightshade

I am not saying Heath can't act (though he is kind of an action doll type) but Jack brought a flavor to the role that will make it very difficult for anyone else to make the role their own. Jack is a more classical actor he is great at what he does and has a honed skill that Ledger cannot even come close to.

IMO Ledger is just another pretty face for the sake of star power, but his acting skills are at best mediocre. He has big shoes to fill and I honestly think he is going to be swimming in them trying to find his way.