The Jokers Final speech before the SWAT team takes him away I think it is the best part just because its that point when Batman thinks he has won and all that joy is slashed to pieces when he finds out The Joker got to Harvey Dent.
i like the interrogation scene, the magic trick scene has to be my favorite and the scene where Alfred is talking to Bruce about how that day he didnt want to say i told you so and how he supposes hes going to be locked up too for being the accomplice; that scene has my favorite quotes in it.
but the scene in the beginning where the bank manager starts shooting the clowns was absolutely cool too, especially when watching in cinema, when the shots of the gun made the whole room tremble
i liked the best when Rachel had just been killed and Dent burned, when everything went all quiet and joker rode the police car hanging out of the window... it is just perfect