Among other Fried speakers I own, there a pair of Betas, Fried subwoofer, and A/6. But, as the cabinet increased in size over time, the floorstanding A/6 will be much different than the monitor sized A/3.
I think they all will be good sounding, and not all that dissimilar. The biggest difference is likely to be between the aperiodically loaded Beta and the other two, which have the Fried Line Tunnel.
Amazing, but the Frieds are a good example of the hype and hoopla of today. Missing the bookmatched veneers, catalyzed finish, and boutique crossover components, I personally find it difficult to outdo my A/6 by any loudspeaker currently under $5000. They run almost neck and neck with my Merlin VSM, giving up only a bit of refinement that could probably be improved by an update of the Radio Shack quality crossovers.