I think most people appreciate the potential of the prequels and what they project into it, rather than the actual construction of the films themselves. The story potential is incredible--the fall of a hero, the rise of Darth Vader, the downfall of the Jedi, a Republic torn asunder in civil war, a secret warrior sect striking out from the shadows to bring about an apocalypse, Anakin's forbidden love and his torn loyalty's between his mentor and Palpatine, his quest for immortality, etc. The actual storyline is fantastic, and the thematic elements are far more powerful than anything in the OT. But none of that gets translated to the screen; it's all flat and messy and without any emotional resonation. But, because the potential is so great, just having those elements in the storyline itself still sort of allows people to appreciate it, they can sort of project their own emotions into it and intellectually fill the great void that Lucas left. I think thats one of the reasons there is so many people convinced of how great the prequels are; the potential is there, but unfortunately none of it is used. It is like if a twelve year old had written the films; you are simultaneously admiring the very sophisticated storyline but disappointed that none of it gets pulled off. I'd like to see someone really do the prequels with all of the human drama present in its conception, because I truely believe the three films could make one of the greatest sagas of all time.