I guess it kinda depends what you might be used to, or which you personally feel is safer. If you're like me, a 1911 and early CZ75 guy, you're not real big on decockers... in fact, you might even consider the 75B-SA, which is currently the only 75B I own.
I like the SA trigger quite a bit and don't have to deal with a DA trigger, or a "magazine brake". You can take the mag brake out of a B or a BD if you want, so that's not such a big deal.
Anyway, bla bla bla... try them both, or rather if possible, try them all and figure it out for yourself.