Originally Posted by Mountaindewslave
I think while Heath did an amazing job, like truly amazing, the character of the Joker in general in comics and shows and movies generally is just a very powerful and unique one
I think (as others have mentioned) Jack Nicholson's Joker was also fantastic while more theatrical than Ledgers
it's a character that is hard to make un interesting
Heath Ledger's amazing performance was part of what made it great.
But what I liked the most was the absence of a background story and a clear motivation for the character. Which makes Nolan's Joker different, also from other versions of the character, and more interesting as a villain in my opinion.