Well, essentially, there are 3 Digital re-mixes:
1st DVD(Gold): 1997 theatrical re-release 5.1 soundtrack. Considered by many as an excellent and respectful re-mix.
2nd DVD (Platinum): The DEHT 2006 5.1 mix (brrrr). A truly awful remix. Everything sounds out of phase, The vocals on the songs comes from all speakers with the same volume...just...no. Strangely enough, all dubs use the 1st re-mix and it is not available in English as an alternative (As was the case with other Platinum releases),
1st Bluray/3rd DVD (Diamond): 7.1 remix with 5.1 core. Better than the DEHT mix. Voices are clearer, and well separated. However, it seems it was mastered too loudly, and there is some mild, but noticeable distortion in the "big" moments. The original DS mix is not available (Once more, despite original mixes being available on other Diamond releases)
I uploaded an HDTV version on AMPS (Video and audio wise, is the same as the Platinum DVD) way before the BD came out which has synched Gold soundtrack with the DEHT mix as well, for all to compare.
There was talk of the DTS discs of the 1997 mix being available to be synched.
This, along with a PCM of the original Dolby Surround mix from the LD, will make for the best sounding custom BD.