What you've just said brings me full circle to the reason why the PT just doesn't "do it" for me. It's entirely back fill (I know that was a completely obvious statement
). We visit the same planets, for the most part, and learn about tons of characters that we already knew about, Obi Wan, Yoda, Palpatine, Vader/Anakin, Chewbacca, the droids, Boba Fett, Stormtroopers/Clones and so on, yet none of that really makes any of those characters any more enjoyable, in fact in most cases the back story diminishes those characters by taking away the mystery that surrounds them. Very few characters of any depth were added to the SW legacy in those three films and really, the overall story, or at least the most important parts, were unchanged so in the end I can really do without it.
Luke, Leia, Han >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Anakin, Padme, Obi Wan