I’m losing my discernment because the sound is so much a part of the equation
By "sound" are you talking about the sound of the stereo itself rather than the sound of the music?
It has been said that one mark of a great system is how much different each song sounds from another.
Your Tritons use polypropylene midrange drive units. Maybe there are a few exceptions like Skanning doped poly cones (which I have not herd to confirm), but "poly eats detail".
I prefer paper and phase plug for midrange unit (Sam Tellig called it a woofer dick) is best IMHO. Metal can also be good. But there are terrible cone break up problems like ringing that have to be designed out.