I agree with James about Paradigm/Axiom being all about a matter of personal taste. I owned Axiom M80s for one year and then traded up to the M100s. My wife didn't like the M100s but she fell in love with the Paradigm Sig8s. I bought a pair of the Paradigms and absolutely love them. After returning the M100s, Axiom returned the difference in cost between the 80s and the 100s, they also sent me a new pair of M80 ( I presume that they had unloaded my original M80s.
I just sold the M80s for $400 below list price but, I cannot lie, I feld a deep sense of nostalgia for them. They have a stronger backbone to their sound than the Sigs which are more refined but in my opinion, you have to go as far up the ladder to the Sig8s in order to find a better speaker than the M80s. I'd buy them again - no question.
I have not heard the Brystons but, at the time that I was returning the M100s fervently wished that the Bryston Model As were out so that I could compare. Too late though. And the Model Ts are too big for my wife. Even though the room is pretty big - I would not even mention the Model Ts to her!! I have separate 2-channel and surround sound rooms, I've got a complete Axiom setup for surround. Once Bryston comes out with its Model A set, I'm going to give it a listen. On the other hand, I might just swap out my M22s for Mini Ts.
I don't change my gear very frequently, the past year has been a complete anomaly. The Sig8s are staying put - they ain't shabby, I'll tell you that.