I'm honestly surprised by how many on this thread chose the ending of ROTS as the best thing about the PT... I tend to see it as possibly the worst, not only for the obvious reasons ("NOOOO!") but because it represents the final nail in the coffin of hope for the potentially great trilogy we all envisioned and hoped for since the green, starry-eyed days of our youth. Moreover, the manner in which it condescendingly tied every little loose thread into a neat bow - even to the point of having fully-formed OT style imperial uniforms and technology materialize out of nowhere, just so that we, the moronic sheep in the seats wouldn't start bleating "But wha happa?!" - was particularly egregiously insulting.
I'm of the firm opinion that the PT is so fundamentally flawed as to be beyond any hope of repair, apart from a full, ground-up remake. However, there is one thing I like about it - John Williams' music. He brought the same class and brilliance to these films that he always does, and Lucas, who couldn't be bothered to write more than one draft for any one of these turds, frankly, did not deserve it.
But there's one moment in the PT where Williams goes so far above and beyond the call of duty, it gives one pause and makes one face the irrefutable fact that he cared about this project more than its own creator did - and that is at the end of The Phantom Menace. The main refrain of the triumphant musical cue played here ("Augie's Great Municipal Band") is actually the Emperor's Theme from ROTJ, played in a major key and at a faster tempo. It took me about 2 or 3 years worth of viewings of TPM (which, admittedly, was not that many viewings) to realize this fact and, when I did, my already incredibly high esteem for John Williams dodecadupled. Absolute genius, that man.