What version/score you prefer?
Personally, i like theatrical version better then director's cut. I'm not sure did Albert Pyun really wanted to release movie in version that is his director's cut back in the day, but since it's mostly just some lousy workprint i can't really say that it was his intention.
As for the score, i really don't like music in theatrical cut. While workprint/director's cut has in my opinion better score it's badly edited with what is happening onscreen, but like i said, it is workprint so maybe there was still some editing to be done before movie was to be released. But on its own original score by Tony Riparetti and Jim Saad is quite good. I specially liked original opening theme and fight scenes tracks.
Anyway, that's my opinion about versions of the movie and scores for them. If anybody would like to give his commments about this, go ahead.