ARC Ref 3, Rowland Concerto, or Capri line stage?

Has anyone had the opportunity of comparing the ARC Reference 3 side-by-side with the Rowland Concerto linestage or the Rowland Capri? If you have, please post your comparative findings. I own and love the Ref 3, but I have heard the Concerto at RMAF and found it to be wonderful. I have also heard rumours that the little Capri may even exceed the Concerto's performance.

My current system is balanced and consists of TEAC X-01 Limited, ARC Ref 3, Rowland 7M monos, Vienna Mahler speakers. I listen mostly to classical--80% of it chamber music.