The super8 versions have the correct colour, correct gamma and no blur applied.
They were taken straight from the original Disney negative and graded to match the theatrical prints. The LDs etc. were taken from ?? and graded to suit CRT televisions and resolutions, so they have a vertical blur applied, totally different gamma and hue adjustment to suit NTSC standards and brightened. Hard to say what other changes may have been done in the telecine process, the lighting definitely is messed with.
The Super8 prints should also have about twice the resolution of a LD, but will have extra grain from the Super8 film itself. Find two copies and average them though and most of the Super8 grain will disappear and you will be left with just the original negative grain.