The 77 stereo doesn't really have a whole lot of punch compared to the 93--being designed for 35mm optical tracks, it's limited in frequency response and dynamic range. The 93 versions came mostly from the 70mm mix, which was not limited in either respect. That is not to say that it sounds bad, however, because it doesn't. I grew up on the 85 mix, which is very similar to the 77 stereo, and even though I now mostly prefer the 93 version because I love its punch and sound quality, hearing the original stereo is kind of like coming home after a long trip and finding things just the way you left them--familiar and right. (I especially felt that way after hearing the violation that was the 04 mix.) I put the cell bay shootout from the 77 track into the 93, because the original version sounds better without those shattering sounds--it's worth the loss of dynamic range in that instance.

The mono version is foreign to me, because I never heard it until recently, and it has a lot of things that I had previously thought were special edition changes (like 'Close the blast doors!') that I didn't care for. It'll never be my favourite, but I have come to appreciate it a lot more.

Edit to add: totally agree on getting rid of the Lego demo. It's a complete waste of space for a fan project that could better be used for video and audio bitrates.