Yeah, the nurse get-up was the only funny part I saw and the line about wanting his phone call... but other than that, he was much more macabre, darker and violent. But wouldn't such extremity be easier to nail than the slight nuances that embodied Jack's Joker? Jack's Joker even had a heart for Vicki Vale. Heath's Joker was completely cold all the way around. He was a stock character. There was no duplicity... no range of emotions. I just realized that the Dark Knight is an alternate version of Batman and won't really relate to the original comic book storyline. Everything was "dark," hence the title. They were both great performances, but I think Jack had a much harder job.