When I think of Rachel Dawes, as a character, the words "self righteous" and "b****" come to mind. The poor SOB watched his parents get gunned down, then he has to watch the guy walk free. He didn't even try that hard to kill Chill. But I love the ironic death scenes though. When the bad guy dies due to misadventure or some third party like Falcone. Like Bruce's whole line about I won't kill you BUT I don't have to save you. Brilliant, or when he "killed" the fake Ra's; falling flaming timbers...didn't see that one coming.
If the Joker does die he'll probably slip on a banana peel and get impaled on his own knife, like a Green Goblin we all know...