Dang... I haven't owned enough PRS guitars to populate a full list! I will mention one that I own, the Mira Soapbar/245 - total rock machine. I suppose the reason PRS doesn't make a production soapbar guitar anymore is, as Paul says, because people quit buying them. But there's something very special about this axe, it reacts to gain in a way that nothing else matches. Very focused and vocal. I don't care for Strat or Tele style single coils with more than a little drive, and usually prefer humbuckers for juicy lead tones, but when I got this one, it outdoes even the humbuckers. Oh, did I mention the clean tones are fantastic?
I have a feeling the 594 will be added to my list in 2017.