Interesting topic, not unrelated to other recent threads on high sensitivity speakers. For me, the question comes down not only to how to pair these with various kinds of amps, nor the tonality, but the dimensionality of the sound. What is the imaging like in horns vs. planars vs. domes? How does the room feel?
In other words, in my understanding -- corrections appreciated -- it is possible to get tonality and pacing pretty close to perfect with the right match between amplifier and speaker, but that will still leave wide open the way the soundstage is presented by the speakers. And, here there is no "best," either, but the choice of which genre of soundstage become the decisive choice point.