I not only agree, that both can sound great but also that both do sound great! They do in my setup.
But two of the typical arguments you mentioned, which might apply to many, don’t apply in my case.
“Optimization towards a source”
My chain is not optimized for vinyl, it’s optimized for digital. Simply because I can only make all the measurements for overall frequency response, sub integration, speaker positioning, for the digital source. Only there I have the test tones and frequency response measurement options.
“It’s all just preference”
When I say “better” in my post, I don’t mean better in terms of any kind of preferences or tonality differences, which might apply if in someone’s chain analog and digital sound generally different (the one more pleasant, bright, bass heavy etc. than the other). Not in my case. When I say better here (and we speak of a comparison of the best analog sourced recordings on both and the topic losslessness of digital or not), I mean better in terms of characteristics I’m convinced everyone would prefer, as they are independent of taste and preference. Those characteristics are more 3D, airy, lively, dynamic, open, realistic. Those characteristics are not related to the general difference between my digital and analog HW to this extent, as with digitally sourced recordings compared on both, differences are clearly smaller or sometimes even not present.
But analog recordings played back all analog simply have especially a more realistic 3D ambiance and clearly more air around everything (to mention the most obvious and the kind of information that seems to get lost on the final digital media in my perception). It can hardly be “added artifacts” as it’s usually preferred by all with a digital focus, too, as soon as digital gear improves into this direction (which it already did to a great extent). And analog certainly has its losses, they are different and there bigger…but seemingly not more relevant to many.
The better both get, the closer they sound in my experience, but depending on the chosen gear, one can certainly also cultivate the realizable differences.
All this said for DSD64 max. I’d love to hear an analog sourced album via DSD256. By the potential I heard from the Mofi LP’s (so far for me the only obvious advantage of compared AAA records seems to be the still slightly more open and airy top end), it could be much closer. And I’m aware that all those differences can vanish or turn around with lower level gear, but I’m sure they increase with higher level.