Revenge of the Sith is #2 because it is so popular right now. Had you asked that poll 3 years ago, ATOC would be at #2, and if you ask 6 years ago, TPM would have been at #2 because it was the newest and most popular.

Yet, time and time tested again, The Empire Strikes Back kicks ass EVERY SINGLE TIME!! How's that for your prescious "CGI" Lucas? That movie is bulletproof! It survived your renditions in '97, and contunes to be the least messed around with movie.

Don't feel dishartened about the lack of A New Hope votes people. I too would have voted for ESB. Most of those ESB votes were a toss up between ANH and ESB itself. It was a close call. I would have had a tough time voting between ESB and ANH myself.

But take a look at the numbers:

PT = 23,193 people say that their #1 movie falls in the Prequel Trilogy.
OT = 43,289 people say that their #1 movie falls in the Original Trilogy. That is almost TWICE as many. Oh yeah. We're still going strong.