^^^Except, the Nolan scripts are half-baked. I'm not quite sure what "thin" characterizations mean to you but to me it means those that the characters are delineated by just a few character traits. By that standard, Nolan doesn't come off so good, either. Nolan's visual imagery and his score (I'm assuming you're one of those people who imagine the director as such is the creator of the movie, sorry if I'm wrong) are inferior to Burton's. If Burton is mediocre, then Nolan is subpar.
I don't agree with that at all. Bruce Wayne had a full character arc in
Batman Begins. He began the film very petulant, unwilling to see the bigger picture and very much hungry for revenge, and as the film progressed, he learned the nature of vengeance and justice and eventually started to think beyond just his own inner grief.
As for
The Dark Knight, the writing is intensely brilliant, as is the writing of
The Prestige. Both films require multiple viewings to even begin to decipher what they're about in the end.
The Joker's dialogue is brilliant not for what he's saying, but when and how he's saying it. In the film, The Joker is literally the most honest character. He tells a lie really only once, when he tells Batman the location of Dent and Harvey. Of course, one could argue that Dent really was AT Rachel's location mentally because of his overwhelming concern for her, and vice-versa.
But I digress.
But let's take this. What does The Joker ultimately want in
The Dark Knight? He wants to be taken seriously. However, as a deranged psychopath, he cannot see that dressing up like a clown prevents one from doing that. The entire film has almost every single character belittling the Joker.
Batman: "He can wait..."
Gordon: "You let the clown out..." (this is at the end even after Joker's blown up the hospital)
Mayor: "The clown can keep till morning..."
Maroni: "He's a clown- a nobody..."
On and on and on, no one takes Joker seriously. And his stories about his scars? They are just one more step -- including the bombing, maiming, and scheming he does to bring Gotham to its knees -- his "tragic" stories are just one last desperate attempt to be taken seriously through pity and sympathy toward the tragedy.
He tells the mob to take him seriously with Batman and Lau. They don't.
He tells the captive Bat-Copy to be afraid of him when he says he's not. He tells him "You really should..." and then he dares Gotham to take him seriously, particularly Batman by unmasking himself.
Then he demands the mayor take him seriously.
It goes on and on, people calling him freak (notice how much that gets to him?), trying to figure out "what it takes to get you people (i.e. Gotham) into the game..."
The only person who finally takes him seriously is Dent, at the end, when he understands The Joker's POV. But think of The Joker, a man who really never lies and ALWAYS comes thru on his word. How the heck would you feel that people still don't take you seriously? Give all the credit to the defunk mob?
But is this spelled out line by line. Nope. You have to watch for it. Very closely, really listen to what and how the Joker says his lines and you'll get it.
Look at Batman, who is often accused of not having an arc in the film.
Batman is addicted to being Batman, and The Joker challenges that addiction. Just as Gordon and Dent have their own morality tested by how far they'll let Gotham fall to not give into The Joker's demands (a refusal fueled by their inability to take him seriously [much like the post-9/11 allegory of us never truly taking terrorists seriously and belittling their lifestyles, motivations, and religions]), Batman too is tested by how many people he will let die in order to unmask.
Gordon (fake death), Harvey, then the guy named Dent, The Comissioner, The Judge, the ten or twenty people maimed during the various action sequences (shotgun police guy, the people gunned down in their cars by Joker's tommy gun, the random thugs, etc.). And lastly...Rachel.
But that's not the most important death according to Nolan. The most important casualty of Batman's refusal to unmask and give up being Batman is Harvey Dent.
At the end of the film, Dent, Batman, and Gordon square off in the abandoned warehouse. Batman is there among friends, people he should trust. And yet, when Dent screams, "Why was it me who lost everything?" Batman pauses -- he hesitates....and in that moment he makes a very simple decision NOT to unmask.
Had he unmasked, the shock and revelation alone would've probably talked Dent back from the brink, would've prevented Batman from having to tackled Dent and have him fall over that ledge.
Dent is the last casualty of Batman refusing to give up Batman. And Batman's arc require that he learn this. Notice at the end, as Gordon and Batman stand above Dent's body. Gordon talks about how The Joker won, in utter defeat. You don't even have to look closely, but Batman is hardly paying attention. He's actually staring at Harvey, the last casualty and then what does he do...?
He looks back up where they all once stood, where he refused to take off his mask and save Harvey, and then he takes on Harvey's crimes as his own.
It's a beautifully layed-out arc that ties into the themes of escalation, obsession, and eventual consumption.
That's why the infamous "tacked-on" scene is so necessary. There, at Batman's last chance to give up his mantle, Rachel is proven right when he lets yet another person die by refusing to unmask and tell Harvey, "It wasn't just you. See."
The Dark Knight is an incredibly complex film with some flaws (like the die a hero line). However, it is one of the most sophisticated and unforgiving films I've seen in recent memories, requiring a viewer who isn't going to passively sit and take it on the chin, and will look past the action sequences to see what Nolan was saying.
Batman is a man obsessed. The Joker, a man who desires to be taken seriously but is so demented as to not see why he's not, is a perpetual engine of enabling for Batman's psychosis as he pushes Batman further and further BACK against limits that Batman himself refuses to acknowledge he has. Thus, a very self-destructive cycle is born.