Explain. Because I found nothing wrong with it and its the best of the trilogy
Not only where Jokers full intentions not fully explained, his actions were all far too convenient. The ending seemed totally detached from the rest of the film. Not to mention so many scenes that did nothing to advance or add to the film. I really tried to like the movie, and watched it a few times at home but I gave up on the 3rd viewing. I think Begins was a much better movie in all ways but the villain department.
Gotham has its share of the more "grand" villains, but you must have a fairies & rainbows perception of metahuman worlds and largely ignorant of EVERYTHING involving cities like Metropolis, Central City, etc.