I cannot believe how any one can defend some of the utter awfulness in the Prequels, are they ok movies? - yes, do they entertain? - yes. Are they anywhere near as good as the OT? No. Some of you seem to be in a frankly weird denial about why the prequels don't have major issues - they do. Period.
I can't link because of the adult content, but youtube redlettermedia Star Wars prequels and watch the videos to see what is wrong with all the prequels...
As for my opinions;
All the prequels suffer from a lack of characterization and too much of Lucas thinking oooohhhh with all my CGI I can do this, this and this, ironically I think the special effects in the OT look better than all the blue and green screen crap in the PT. The biggest problem is the Prequels have a bunch of charachters in that I don't really care about - Qui-Gon dies, but even as a kid I didn't care much, I think Mace Windu's death is the only one in the whole PT that had any emotional impact, and even that was mitigated by him not acting like a Jedi.
What's wrong with TPM - biggest problem; it has no main charachter, can anyone tell me who the main charachter is? If it's Obi-Wan why is he missing for large portions of the film? If it's Anakin why are we not introduced until 45mins in? Lets not even talk about freaking accidentally blowing a whole star ship up. If it's Padme why does she spend the whole film being boring as hell and pretending to be a servant. If it's Qui-Gon whats the freaking point considering he dies? The next issue is that stupid pod race, TPM pacing doesn't work - it seems to me Lucas wanted a pod race and then made a really convulted plot to include it which just spoiled the whole film.
AotC - Jane Austen in space, with charachters we don't like and horrific dialogue. "The Clone Wars" - Seriously, I think all of us wanted to see them, it's Star WARS, not Star LOVE. Also more Space politics we don't care about, and more boring dialogue I could watch on the politics channel if I really wanted. Also Anakin is a complete idiot, I don't really care about his fall later in RotS because he's a total tool. Also would you seriously fall in love with some egit who slaughtered a whole tribe of women and children. Like its early in their relationship, if you went out with someone for two weeks and then they said by the way I'm a serial killer would you really still continue a relationship? Or report them to the freaking relevant authorities? Additionally Hayden Christianson was just an awful choice of actor; I'd vote Christian Bale personally. Lets not even go into the Clone army being created the Jedi saying they will put all their resources into investigating it and then... Completely forgetting about it and just going to war.
RotS. I hate this film the most. I also love it, for the fact the Emporer is amazing in it. I hate it as it ruins the twist "I am your father" in ESB, and also spoiled my visions of "Do not underestimate the powers of the Emporer or suffer your fathers fate, you will" - I'd always imagined Anakin and the Emporer fighting. As a kid I was captivated and shocked by the "father" reveal, how many kids have had that ruined by seeing the films in "order"?
Here's how it should of been done... Vader should of been the Emporers private assassin from the start, we see him in a proto Vader suit, assassinating various of the Chancellors enemies. Vader is shown to think this is good by aiding the republic... He also likes that he is gaining new powers - he could learn force choke for example on a mission.
Anakin is doing his Jedi Hero routine. We never see them togeather (like say Batman and Bruce Wayne). Anakin goes to confront the Emporer having figuered out he's a Sith, he gets his ass handed to him with lightning... And that's the last we see of him; he's presumed dead. The Emporer then orders Vader to attack the Jedi etc etc, so would of been saved until ESB for us to finally realize (if watched in chronological order) that Anakin and Vader are infact the same person, and gives a whole new twist on Anakins fall.
Yet another problem - totally inconsistant tone, this started with RotJ and the flipping teddy bears, but this gets ever more worse in the Prequels, on the one hand we have the super daft and stupid Jar-Jar, the totally stupid and goofy battle droids, then we have Anakin slaughtering women and children, and finally see him dismembered and burned alive. GL, what on earth were you thinking?
Finally Yoda should never hop around like some feral kitten high on speed. He also shouldn't draw a lightsaber, should just fight enemies with the Force. And he should of been the one to kill Grevious, Grevious should of been shown killing a few Jedi, then he fights Yoda, and Yoda just crushes him with the the ceiling...
(Could I of done a better job of the OT than Lucas, undeniably not. Could I of made the prequels a hell of a lot better, entertaining and coherant than they are... YES. Also if anyone tries to defend the new Indiana Jones film, I'm liable to think you completly devoid of any ability to discern a good film).