@Yst,
Okay, I'll grant you that even the original trilogy can barely stand on its own three legs as being considered "good" movies, but they're still vastly superior to Lucas' latest crop. The OT had some genuinely memorable characters, good acting (Harrison Ford, anyone?), humor that didn't have to cater to a prepubescent audience, and an at least passable storyline, all of which I attribute to Lucas' acknowledgement that he wasn't/isn't a sufficiently talented writer/director to take on the telling of his story alone.
The entire prequel trilogy is riddled with laughably bad dialogue (delivered even more so), unnecessary exposition, and a completely unconvincing story arc. Even the special effects, which are heralded as being Ep3's saving grace, are mired by muddy choreography that flies by so fast you can't possibly follow what's going on.
Lucas botched just about every major fight scene. Count Dooku? He spews a few lines and is then promptly defeated and killed. Obi-wan and Grevious? I'm really not sure how Lucas managed to make a lightsaber duel with a droid capable of wielding four at once so uninteresting. Mace Windu and Sidious... Yoda and Sidious... Obi-wan and Anakin... all suffer from lackluster sword play. The fight between Obi and Ani at the end of the movie dragged uneventfully on and on until Obi-wan finally arbitrarily declares that he has the "high ground," and this is supposed to explain why he's about to win. Does Lucas really have so little faith in his audience's capacity that he feels it necessary to beat us over the head with this kind of needless explanation?
Probably the movie's greatest failure, though, is that it reduces one of cinema's greatest villains to a whiney brat. The scene with Darth Vader, having at last donned his trademark life support suit, stomping along like Frankenstein and bellowing "No" just made me shake my head in disgust.
I'm ranting now, but I guess I am just kind of pissed off that these movies sucked so bad. It's a silly thing to get all bent out of shape about, but, well... damn it!