I got several of these and had several others - all are great, so you really can’t go wrong, with most of your choices. And there is not a huge difference in the sound of your top choices. It’s more of a function of your space and your budget, because your choice of speaker can make a significant difference in how much you must invest to achieve the optimum sound of whichever speakers you select.
I’ve got the Maggie 1.6’s modified by Magnestand by "PGunn" - which have a superb sound with bass and dynamics that other Maggies lack. I love their open sound, but would miss the bass and dynamics, if they weren’t modified to provide that sound.
And although, the Magnestands are more efficient than Maggies, just as Maggies, they do require matching ss amps to drive them to their potential such as Halo A21+, JC-5, JC-1’s, Bryston, or more expensive amps. Without that investment you won’t achieve their best sound. And for stock Maggies, you may also have to invest in a nice set of REL subs to achieve the bass and dynamics you may seek.
I’ve also got a couple of sets of open baffle speakers: Emerald Physics and Linkwitz Orions. They both have the sound of Maggies on steriods - great open, spacious sound, but with bass and dynamics. However, both require DSP’s and matching amps. In the case of the Orions, which I prefer, they require an 8 channel DSP and 8 channel amp, with the power to drive them to their potential.
And... I’ve got Harbeth 30.1’s and 40.2’s, which also have an open, spacious sound with great bass and dynamics, much as the dipole speakers I’ve noted above. But... they do not achieve their real sound potentional unless you invest in a powerful SS amp to drive them properly to that big open spacious sound, with great bass and dynamics. I would not have kept them, until I bought the Hegel H590 to drive them to their potential. Without that amp, they had a muffled, veiled sound without clarity, resolution, and soundstage that they can have with the proper amp, which must be powerful and very neutral, just as Harbeth and Alan Shaw suggests. Other amps that drive these to their potential are Benchmark, Bryston, ATI, and others that are equally powerful and neutral, without the warmth to veil their sound.
So... you can achieve your goal, with most any of your options, so long as you’re committed to selecting the right amp to drive them to their potential.
Personally, I’d probably start with the Spatial Audio open baffles, because they’re fairly efficient and they do not require a DSP. And because you can drive them well with a tube amp, should you decide to try those. Or, the Harbeth 30.1’s or 30.2’s with a Hegel H390 - which provides everything you need: a good DAC, Preamp and Amp, which can drive them to their potential. The advantage of this last suggestion is that you can start out with about the best sound available without the urge to constantly upgrade to other stuff - it truly is Gold Award sound for a very reasonable investment - especially if you buy used equipment.