From the New Yorker

I don't think they liked it much, but then again like many Blue Staters they have a serious "We are smarter than you" complex going on.

Money Quote:
The general opinion of “Revenge of the Sith” seems to be that it marks a distinct improvement on the last two episodes, “The Phantom Menace” and “Attack of the Clones.” True, but only in the same way that dying from natural causes is preferable to crucifixion.

Money Quote 2:
The young Obi-Wan Kenobi is not, I hasten to add, the most nauseating figure onscreen; nor is R2-D2 or even C-3PO, although I still fail to understand why I should have been expected to waste twenty-five years of my life following the progress of a beeping trash can and a gay, gold-plated Jeeves.

Ah hell, the thing is loaded with money quotes, go read it.