The Original Vocal Mix is one of the first ever classic trance tracks that I've loved. Discovered it on ASOT Classics 7 I think. Such a sweet, driving vocal track, with a nostalgic mood.
Slacker's Rolling Mix is so cool, love it. Does its own thing, so groovy. Slacker's Elevation Vocal is also pretty cool. The vocals work but a dub would've maybe been preferential. These two are exactly how you should remix a track.
The Space Brothers Dub is my least favourite. It's still nice but the other three mixes just take the cake for me. The absence of vocals (as compared to the original) makes it that much weaker.