20k Leagues never received a BD release, so an HDTV version is a close seconds for High Def.
The Aristocats HDTV doesn't suffer from excessive DNR like the BD.
Aladdin is post changes, but IMO, the original color palette was kept and the animation additions kept to a minimum. I know it's better than the BD on the aspect ratio department, having more information on the top and bottom, and I've heard the BD has some encoding issues.