Ooooh, look at you all conciously contrary!
There was more of a story than Batman Begins.
Ledger's performance was amazing, there is NOTHING of the actor himself there. It is rare that an actor can so totally aborb himself in a role as to be totally unrecognisable. Look at all the actors that just play themselves.
Every expression, inflection, tic, movement and emphasis was a masterclass in character acting. The result, a truly chilling yet entertaining villain.
Almost as bad as Ledger dying is the morons coming out and giving the tired 'nobody would think he was any good if he hadn't died'.
Conveniently forgetting the massive buzz about the performance long before the accident. Actors die every year, including ones with a fuller CV then Ledger's. They don't all get such acclaim. There is no reason for Heath Ledger to get much attention unless the performance was good. Which it is.
Otherwise, no-one could win anything unless they were dead.