Best Turntable: Rockport or Goldmund?

I know there aren't that many around, but does anyone have any experience with the huge Rockport or Goldmund (Reference?) turntables with their integral stands? How about the VPI TNT? I have had good experiences with massive, unsprung turntables and think all of these models are quite cool, but wondering how they might differ in terms of sound and build quality. Hoping for a bargain one day on Audiogon if I can figure out which one is the winner.