Originally Posted by Doomed_hero
I dont feel joker was more complex then Vader. Vader had a internal struggle and a tragic story that makes him who he is. We hardly really know anything about Joker other then he likes to cause choas. he is a evil force of nature but not really that complex.
Joker constantly makes up stories about how he became the Joker. From a psychologists point of view, he's a wealth of treasure. He's been in and out of Arkham, scientists trying to study his psychosis but still can't penetrate his twisted mind. His anarchic view on society. Plus he and batman perfectly fit the concept of yin and yang. One can't exist without the other. That makes for a deep character, IMO.