Since we all have them available now the best result is usually to try each one and see which you prefer and what sounds best on your setup.
For me I’ve become a huge fan of the mono mix despite having many of the stereo differences ingrained in my memory forever. The 85 track is great and adds the IMO essential tractor beam line back.
And of course the 97SE mix is outstanding too.
I love the mono ESB track. It has a number of things that popped up in the SE mix and sounds exceptional for single channel audio. Otherwise the others sound virtually identical for the most part. ROTJ is similar.
The 97SE mixes are great at introducing the films into the modern six channel layout without losing their original identity. The 2.0 matrix PCM actually sounds even closer due to being similar to the original general release format.

Nothing that isn’t an LD has decent audio. VHS had some good issues but you need a great deck. All the DVDs are **** in sound quality and the continual remixing to 6.1 tracks become continually worse and worse with lessening degrees of fidelity.

One question: how is the 85 mix different to the 77 stereo exactly in terms of the dynamic range? I know everybody says the dr is different but are try just referring to a narrowing of sound field for home viewing?
And did we ever find a difference in the 85 tracks for ESB and ROTJ?