Here I'll sum it up:
Bale isn't a bad actor and shouldn't be blamed for the lame-ness that has been the last two Batman films. The casting director that ever thought he would make a good Batman should.
For that matter a list of people that should be fired for their participation in the batman disasters:
The location manager.... it's Gotham City, not downtown LA!
The vehicle designer..... The batmobile shouldn't look like a reject from a G.I. Joe playset.... motorcyles should be narrow enough that you can actually straddle them.
The writers.... Yeah let's make Ra's train Batman and take away all of his mystique and supernatural abilites... while we're at it, let's do that whole "squeeze too many villians" bit like they did in the later batman films... that turned out real well. Oh and don't forget we've got to make the Joker into a crime lord, because he just isn't dark enough already.

The makeup effects guys.... Hmm lets see... scarecrow didn't look scary, the joker looked like a trauma patient, two-face was a over-cgied mess ect...
Basically both films lacked any redeeming value what-so-ever except for the fact that they were better than Batman and Robin... which is like saying you like getting raped in the face because it doesn't hurt as much as getting raped in the butt. The astounding thing is that many people LIKED those films and much worse, think they are better than the original batman films, which let's face it, are masterpieces. They have better production values certainly, but that's all they have.
As for this whole "dark" trend:
Spiderman is a special case. Rami and the principal actors said they wouldn't do a 4th spiderman due to the fact that the third one wasn't all the great and it had wrapped up the story rather nicely. In other words they had artistic integrity. The studios essentially said "screw you guys, we're making more films anyway" and HAD to reboot the franchise because all the villains were dead. Spiderman has had some "dark" times over the years, but we aren't talking about a "dark" treatment anyway, rather a (ugh...) "sexy" one. Spiderman has been dark, but he's never been sexy.... he's a quirky, nerdy type of guy. That's why we love him! He should never be portrayed as "slick" or alluring in any way.
As for superman... I just don't know what you can do with superman. Christopher Reed IS Clark Kent and now that he is gone, you just can't do anyomore superman films until you find a suitable replacement. The last guy really looked the part, but there was something missing. He was also stuck in a terrible movie. They basically ripped off the original superman film almost shot by shot and then the few things that the DID change, were just awful. Supes can't hve a baby... that's like Jesus having a baby... the faithful just won't stand for it and holdng a mountain of Kryptonite would surely kill him.
They are trying to make supes more relevant in our jaded society by making him darker but that never works. I think they just need to shelf him for now. When someone comes up with a truely masterful story they should bring him out, but not until.