Wow, how many comments!
So, at the end, which are the most important titles to restore to start with?
The Lion King, Beauty and the Beast for their original unaltered version;
Fantasia primarily for its laserdisc PCM audio track;
Snow White, Pinocchio and Cinderella box sets for their original mono mixes on the analog tracks;
Cinderella for its original colors;
anything else?
About Roger Rabbit PAL: if I rembember well (because I watched it several years ago) this version is uncensored... but maybe I'm wrong; I have to check them, when I'll have time.