Pretty sure I can be a drive-by poster if I want to be.
Regarding electronics, there can be no debate. You put it on the bench. If the output matches the intended output. Then it is good. Else, it is bad. Example: amps turn little waves into big waves that can sufficiently drive the load as if they are an ideal voltage source - which all classAB or D amps that cost >$100 can do now. That’s it. It’s just too easy to screw up, and @amir_asr is one of the best in the world at not screwing it up.
Regarding analog/digital interconnects, there can be no debate. It’s just simple physics and/or EE theory. It doesn’t matter, but I’m an MSEE w/ 25 years experience designing analog and digital chips. I know the math better than most.
If you want to debate speakers with me, then first watch this video on Floyd Toole’s landmark research (link below). @amir_asr can correct me if I’m wrong, but he uses an implementation of this research to predict speaker performance, along with subjective listening to verify expectations. I haven’t read all the reviews, but I don’t recall anything he’s heard that wasn’t predicted. If Spinorama says it sounds good, then so will blind listening tests. Other than that, as @amir_asr points out, the only other thing that matters is if it can go as loud as you like it without hitting large-signal limits.
If you don’t believe in blind A/B/X testing to verify your assertions, then please don’t debate anything with me. You’re an audio theologist with money to spare, not a scientist.