Decent movie but I don't know that I would put it better than the Dark Knight. At the very least, this movie is not as stand alone as the Dark Knight is - as a capstone it stands on the shoulders of the previous two movies
This one has a much different feel to it than the Dark Knight did, so its hard to give a one to one comparison as well
I think the overall acting was better in Dark Knight, tough I enjoyed some of the new characters performances. I also think they crammed too much story into this film, a film this grand could have been split into two and expanded upon, though I'm not sure it would have added to the entertainment value (not as action packed as the last ones. Not bad, but completely different feel and auidience)