After 5 year of listening and traveling to dealers this is what I found does and doesn't work. I am now a WP7 owner.
Wilson synergy that I didn't like (Classe, Krell, Mark Levinson) any type of silver cable YUK or Audioquest or monster yuk .. High's were all too brittle and etched, not musical.. they disected musical scores.
Wilson Synergy that I could love (VTL, Manely, Rowland, LAMM,other mosfet solid state (not bi-polar), ARC Solid State or Tubes, CJ (not really realistic but very warm an pleasing. Music Reference (RM9,RM200)). Transparent Cabling seals the deal and takes these to the next level
Siliab - Great Match I still keep kicking around buying the Music Reference RM200, I owned an RM9 which was awesome (realist control without tube bloat) and huge soundstage and increadible for vocals.. I still might pick one up to try on my WP7's (the Lamm's I have are amazing but I've always wondered about that gem of an amp!)