This might not be the thread, nor forum, for it, but I wanted to address these two points, Ronster:
1. It was mostly filmed on blue or green screens which did not help the acting as there were very few physical sets
2. different techniques were used to create the sound digitally and not in analogue
Point one is a common misconception. Yes, a lot of blue screen was involved in the making of the prequels, but there were way more sets than people would like to think. In AOTC and ROTS, Padme's apartment, Padme's veranda, Palpatine's office, Padme's different places on Naboo, Jango's apartment, the Geonosian hangar, the Invisible Hand's bridge and observation room and the Mustafar control room were all fully built sets.
Partial sets include the Senate, several landing platforms, and the Geonosian arena. And let's not forget most ships that were built: Anakin's speeder, air taxis, different Jedi fighters and Dooku's solar sailer.
There was a lot of location shooting in AOTC as well. Naboo was shot in Spain and Italy, while Tatooine was shot in Tunesia. ROTS was the first Star Wars movie that did not shoot on location, it was only shot on sound stages. For all prequels, blue and green screen was mostly used during pick ups and reshoots, though I'd concede that a large part of Kamino was realized digitally.
The point I'm making is that blue and green screen alone is not to blame for the PT's visual esthetic. I'd say the digital filming is a large part of it. TPM looks like a Star Wars for the most part, because it was shot on film. AOTC was the first movie to be shot digitally, and I think it shows. It looks plasticy, and that makes some effects stand out in a bad way. They had it under control with ROTS, which is a nice looking film.
It's also the design choices that were made during pre-production. I don't mind parts of them, because the PT is set in a more prosperous time. We also spend time with the elite of the Star Wars galaxy, instead of with a bunch of rebels fighting the man. That said, some corrections could be made, such as color correction to take of some of the shine, and displays.
As for the second point: yes, sounds were altered digitally, but were still captured manually. There is a pretty cool doc on the AOTC DVD on the sound design which shows they recorded rare planes for speeders and made recordings at an assembly line for the droid factory. They even went through the archives to look for sound effects that were recorded, but never used, for the OT.
Anyway, good idea for a thread! :D