None of the shots have depth whatsoever. Which is why I said they're flat. The lighting is ok at times, but most of the time everything seems... well... flat.
For examples of good lighting, see the following:
Any Ridley Scott movie.
http://www.imdb.com/name/nm0000631/
Any Tony Scott movie.
http://www.imdb.com/name/nm0001716/
Any David Fincher movie.
http://www.imdb.com/name/nm0000399/
The general cinematography in LotR is just basic. Everything tends to be in the center of the screen. It is VERY hard to create positional relationships like that. There is a rule of thirds. You are supposed to divide the frame into 9 equal sections, three up and three across. Each of the intersecting lines are where you're supposed to put things. Jackson's DP does not do this, and it is a problem.
For examples of good cinematography see:
Any Robert Richardson movie.
http://www.imdb.com/name/nm0724744/
The editing in LotR is bad as well. Many scenes do not transition well at all. This is very apparant in the RotK EE. The scenes just change. Look at the end of the third movie. You'll see what I mean.
For examples of good editing see:
Any Pietro Scalia movie.
http://www.imdb.com/name/nm0768817/
A movie should be paced well. There shouldn't be periods of several minutes when nothing really happens. There generally should be an event of some kind once every 20 minutes or so. LotR doesn't really do this. It doesn't have to be a big event, it just has to be an event. There are periods in TTT when nothing happens for nearly 45 minutes. It gets really boring. It's not a staple of filmmaking, because if character development is going on, it is generally better than an event, but there is nearly no character development anywhere in any of the 3 movies. The characters are simply characters. That's just how they are. They are not developed at all. This is bad.
Another piece of excellence (sarcasm) that LotR delivers due to the lack of any sort of character development, is the fact that as soon as you see a bad guy, you know he's a bad guy. He's so bad, and so wicked that there's no way you could possibly like him. In the case of the Nazgul, or Denethor people don't seem to mind. In the case of Darth Maul in TPM, people seem to think it's stupid.
Merry and Pippan are completely unneccesary. They could have been serious characters and still done the things they did. They are completely interchangable and throwaway. Most of the time they're only in the story for comic relief. They're 'funny' but Jar Jar is stupid and annoying. Note my sarcasm.
Gollum is a completely cg character that speaks in an annoying voice and serves as a major plot point about 2/3 the way through the story. This is great, and again, Jar Jar is stupid. Note my sarcasm.
Female characters are not even characters. They lack character SO much that they have to be shot with a soft focus filter at all times that way we know they're kind and friendly. The same goes with all kind and friendly characters. They're shot with a soft focus filter and a warm white balance to show they're friendly. Mean and despicable characters are shot with a blue white balance and a ton of sharpness. This shows that they're obviously not good. This allows Jackson to totally forget about developing characters and throw in another bit of people walking around new zealand.
For god's sake, I don't want to go on anymore, it's simply pissing me off to think that so many people like these movies. Most of it isn't even Peter Jackson's fault. Tolkein's books are severely flawed. If Jackson hadn't stayed so true to the books, the movies would have been far better.
EDIT: And don't tell me I should read the books. "If I read the books, it'll be alot better, right? Wrong. Any movie which requires additional reading to appreciate is a bad movie.