I'd just like to add that Tim's idea that there is "simplistic" morality in the OT is simply false. He must have missed the entire ROTJ climax. The situation is:

If Luke kills the bad guys, he becomes a bad guy.

If Luke does not fight, he will be killed.

So, Luke can't win by fighting, but he also can't avoid the fight! That's a very precise moral dilemma (which the PT, btw, ruins), and one that, in my opinion, separates SW from just about all other popculture movies of this general genre. In those, it's rather all about vigilante style justice. In SW, it's your actions that define you as good or evil, not which badge or uniform you happen to wear.

As for the rest, it's simply the same old PT-fan line: the PT had cool themes, ergo it's good. As if execution didn't matter.

Edit: Oh, and I can add that the notion of "flawed Jedi" is true, the jedi in the PT are supposed to be flawed, that is an integral part of the PT thematic framework....but the ground work for that thematic framework is actually laid down by the OT. The Jedi HAVE to be flawed, because the Emperor MUST win - if he doesn't, the two trilogies won't connect. So, way to ignore how the groundwork laid by the OT dictates the premises of the PT...