Both really. Theres some parts where I liked DiC's music over the original, or visa versa, and not just because of nostalgia reasons.
DiC did a pretty good job capturing the right "feel" to a scene, I even noticed theres some parts of their score that actually borrowed the same melodies and notes as the original Japanese version. Pretty neat. Its a real shame they never put out an actual soundtrack.
The Japanese score is also enjoyable, but it's kinda dull at times and can get pretty repetitive, however it serves its main purpose as "background noise". I know I like putting on the soundtracks during a quiet afternoon, and need some non-distracting music while I'm trying to do whatever it is I'm doing. (Meanwhile DiC's score had a little more pep.)
There are some real gems mixed in among the more redundant tracks that stand out and outshine DiC's music, though. The Outer Senshi's themes, and the creepy circus themes from SuperS, being some great examples why i'm glad I got to hear those during my youth instead of DiC's music, which would later help form my appreciation for soundtracks.
___________________________ Signature by Ai No SenshiMyAnimeList Deviantart