Go with SF, there are certain advantages to be had with them. Efficiency means you will not need monster amps to drive them, which usually saves space and leaves some room for other expenses too. Those who consider Bryston to be musical have perhaps not heard what a good tube amp can do. SF are not fatiguing speakers and long listening sessions can be a pleasure.
The Maggies are very good speakers indeed but one of their drawbacks is the space they require to sound at their best and the workhorse amplification required as well. They can sound quite good too, perhaps more true to the music if that's way to put it but I think they require more attention to get the best out of them. Consider powerful ss amps for them if this is the way you go. Imaging is one of their greatest strenghts.
The Maggies are very good speakers indeed but one of their drawbacks is the space they require to sound at their best and the workhorse amplification required as well. They can sound quite good too, perhaps more true to the music if that's way to put it but I think they require more attention to get the best out of them. Consider powerful ss amps for them if this is the way you go. Imaging is one of their greatest strenghts.