I add my two cents but as usual I won't be able to be concise, so please feel free to skip my post.
Contrary to what many believe – that speakers have to be as neutral as possible and, being at the end of the audio chain (which is not completely true, since the room comes after them), are only expected to transmit what they have been fed with, also depending of how they interact with space – I think that speaker systems, actually 'sounding', make the strongest connection with our psyche, establishing the closest relationship with our inner taste with sound.
So, in my opinion (and almost everybody's experience) choosing speakers is a long, demanding and costly matter, unless you let someone else (the press, a forum, a dealer, your own budget or some superficial, erroneous convictions) decide for you. I think I have listened to almost all of the speakers mentioned in this thread, some of them in my own living room: Marten Design Miles II and Monks, rega RS7s, Ovator S-400, Allaes, Credo, SBLs, n-Sats, Arivas, Acoustic Research, PMCs, maybe a few more; and to all of the current Wilsons and most Magicos, up to a Q-something, a big black aluminium coffin costing the like of €180,000, in a friend's audio store.
The fact that after a ten years' rollercoaster of experiments I have settled for my fifth pair of n-Sats doesn't tell much about their quality, but just that they work with my room and my taste. They have limits, but with them I don't get bored. So far, avoiding boredom is the best I can expect from any stereo system.
For what is worth, I would take Wilson over Magico any moment: I have heard the last Yvette with DCS front end and Dan D'Agostino pre and mono blocks, and in terms of coherence, sound stage, likelihood, I think that it is as good as it gets; and the Sabrina are extremely enjoyable, like supercharged Harbeths, with a very rich, dense, tuneful midrange coming towards you, very engaging.
The NAP300 struck me as almost almighty: I've heard it drive the Canton K3 and K7, the Sonus Faber Amati, Magico S3s, S-400s, Harbeth M30.1s and it always sounded the same: powerful, rich in deep and controlled bass, extremely coherent and with very good soundstage, never harsh; a definitive amp. The Sabrina and the 300 could do a wonderful marriage, providing the room is not too 'live' (the Sabrina are a little exuberant, but what a soundstage..) and that you simply love the sound – that that is your voice.
Quality on paper is not very significant. There must be a voice, somewhere, that you love: if that is the NAP300/Sabrina's, good for you. They are examples of splendid audio engineering.
Best with your quest