TDKR's "badness" lies in the script which in turn leads to poor character motivation and development as well as a number of plot-holes. But these don't matter to an audience. So long as the pacing is intact and the performance is consistent throughout the duration of the movie, most audience won't notice said "badness." Nolan's brilliance is in his way of suspending audience's disbelief.
Having said that, it's still a great summer blockbuster, no doubt about it. My earlier point was that like or dislike is subjective. Objectivity comes when the hype has ended. That's when you see the movie for what it is. If I was to ask you to watch a movie from some obscure East European country, you'll watch it objectively because there is little chance of it getting any sort of an exposure or hype and therefore nothing gets in the way of your judgement. That's all me point was. I only point out the "badness" because I have a degree in filmmaking which is why my observation is academic in nature, but the point is quite simple; like or dislike is subjective and objectivity begins when hype ends or something along those lines.
Speaking of trilogy, can I recommend The Godfather? Best ending to a trilogy by far. Superb script, acting, directing, cinematography, set pieces, score, the whole nine yards.
Incidentally, I love Dark City too.
"The spirit of resistance to government is so valuable on certain occasions that I wish it to be always kept alive."
-Thomas Jefferson
"Resistance is Futile"
