Ohhhh, such a contentious subject.
Personally, I like them. They're not as good as the OT, but they are enjoyable movies, none the less.
The acting, especially in TPM was wooden, but in a movie with as much green screen as this, I figure that it may be difficult to act in front of a tennis ball for any length of time. Excellent pod race and excellent lightsaber duel.
Attack Of The Clones was the weakest in my opinion, but only because of the aweful love story.
Revenge of the Sith was okay, but I didn't like all of the posturing that went on for the final lightsaber duel.
I'm also one of the few that had no objection to Jar Jar Binks. Yes, he was annoying, but he was there for the kids and other loved him.
Special effect, sound and music where all excellent, as was the design.
Overall, I do enjoy them. They're not excellent, but they are good.