Harlow, I really like your descriptions as they not only cover sound but also feel and are put in context. I think this is really helpful.
Cheers Stephan
IMO, my $0.02:
You can get any sound with an MXR 10-band and we would all be playing Telecasters if that was the only thing that mattered.
The real reason we all gravitate to different axes/pickups is because they feel different, respond better/worse to our individual playing styles, and drive our different rigs in their own unique ways. I have 4 humbucker guitars, an ESP Eclipse, and RG Prestige, a Strandberg (HSS but still), and my Kiesel - they all sound like bright, decently attacky modern humbuckers (Strandy excepted) and I can make them
sound the same with a couple of notches on my amp EQ. But the response, playability, and feel of each pickup in each guitar (despite the fact that I could easily swap all of them around and not necessarily hear a difference on a recording) is complementary to the response, playability, and feel of each guitar. I like the stiffer Lithiums in the Kiesel because it has a spongier resonance, I like the more compressed Fusion Edge set in the RG because of its open resonance, and I like the EMG-ish Guitarmory Patriots in the Eclipse because they make it sound as big plugged in as it does acoustically.
Jazz guys don't dislike the X2n because of the sound and output - there's a lot of them that use a Tone Zone which is in the same kinda ballpark - they dislike it because of the feel.
Country guys don't avoid humbuckers because of the sound necessarily (as there's definitely HBs that will get that plucky clean) but because they don't feel right for the style of playing.
Etc., etc.
Just my $0.02, /rant