I am wondering a few things with some of the comments:
First with all comparisons were these the latest v3 versions?
Two were the systems identical?
Also in the comparison is that these are two different soundings speakers:
Sonus Faber is known for a very silky midrange, with a smooth top end, good dynamics and a slightly rich bottom
Paradigm is known for superb detail in the top, a very clean midrange, and tight, fast bass.
You would need warmer electronics to make the Paradigim's sing, and cleaner electronics for the Sonus Fabers to sound their best.
And by all accounts the Top of the line signature Paradigim speakers are very high end and have been compared to the likes of Revel and Wilson by many reviewers.