I actually enjoyed TPM when it first came out. It was after about the 3rd viewing that I started realizing what rubbish it is, as a movie.

It is one thing to enjoy a movie, and another thing to declare it to be a "good" or "great" movie. I enjoy quite a number of movies that I also admit aren't good movies. For instance, I enjoy "Rookie of the Year" quite a lot. It just makes me laugh. But frankly, it isn't a very good movie. It just happens to tickle my funny bone. Rocky IV is a guilty pleasure, but objectively, it's really terrible. There are also some great movies that I don't enjoy all that much - "Sound of Music" is one of them (although I love "The Music Man" - go figure).

Similarly, I still enjoy TPM, mainly because the lightsaber duel is fun, and it's great to see Tatooine. I watch it occasionally and enjoy it when I do. But a quality movie it is not - the script, acting, editing, and story are simply not good movie-making. The script alone is probably irreparable. There is a reason it gets the ratings that it does. And likewise, there is a reason that Star Wars ("ep.4" for the younglings) is perennially on AFI's top 20 list of all time greatest movies. Script, character development, timing, editing, score, all impeccably done with timeless effect.

I have no doubt that there are many people who enjoy the prequels, just as I enjoy "Rookie of the Year". There's nothing wrong with that, and far be it from me to tell someone what to enjoy.