The “best” is the US 2009 BD even though it’s slightly windowboxed for overscan, it doesn’t have the DNR issues though and has the original Japanese stereo mix (however it also has dub titles rather than proper translation subs)
The re-releases from FUNmation use the same master iirc but exclude the original mix, which is significant because the remix has many changes
The true Theatrical Mix Was Never Released On Home Media for what I’ve heard
If that’s true then idk how the current stereo track would be any different, seems original to me
The film underwent some extremely minor changes when it was first released on home video. Certain scenes were reanimated and a few tweaks were made to the soundtrack.