Wow. So much to unpack!
I did try warning you
@Mesonto this wasn't gonna be the place to cater to Amp-as-Food descriptions. Considering I'm a former professional Chef, I've also been exposed to way too much Food-as-Sex description and am therefore extra leery/weary of this Amp-ophile tendency.
If they both sound GREAT, then it doesn't matter which amp you buy in regards to sound quality.
THIS! It was said above, too! and it is very true.
On a side note, I am going to followup with the suggestion of listening to the Salk speakers and maybe thinking about a future purchase.
Now you are getting somewhere!!! Kudos.
I haven't heard Wilson Audio but by reputation. For a boutique brand, though, I've heard a lot of negative critiques when it comes to their actual performance.
On the other hand, I can say in all honesty that I am thoroughly impressed by the speakers Jim Salk produces. His Cabinets are stunning, and the driver choices, voicing and Crossover work are exemplary. My own Phil 3s were the work of Dennis Murphy who consulted and designed most (all?) of Jim's XOs. The Phils were Dennis' response to the SoundScape 8, previously Jim's Flagship which has been described by many as the best speaker they had ever heard. Dennis wanted something similar but more affordable and thus his Phils were birthed.
Regardless, Jim's team built my Phil3s for Dennis and I am indirectly a Salk Customer.
After hearing what well designed speakers with a flat FR and accurate voicing sound like, I don't think I can ever go back to buying OEM gear again. And definitely, I won't spend the money on boutique cr@p that doesn't walk the walk.
For me, at the CAS this past year, Jim's new flagship did just that: it walked the walk. The SS9.5 was, to me, the best speaker at the show.
I hope you do get the chance to hear some Salk Speakers. Moreover, I hope you enjoy what you hear.
Cheers!