I am a bit uncertain right now on SS vs valve phonos, mostly due to lack of experience of comparing.
I compared burmester to AR ph 7 (yes, that is a lower model of AR) wth Fuuga, an Italian one called AM audio to VTL 6.5 with zyx r1000, and XV-1s through Lyra connoisseur with AN IO through Tron GT.
In each case, the SS was much better. Most obvious was with piano, where range was more, attack on leading edge was better, you could feel the dynamic and nuance of each note, and it flowed better. Noise floor was lower, more resolution, and violin was excellent. Richard Mak's review of burmester seems to agree, it is the AR ref 3 that he rates at a similar level, not 2.
The exception was comparing Airtight to a much more expensive music first phono where the AT was much better, with the Proteus cart.
This is different from my pre amp experiences where the valves make me more involved even if I can see disadvantages on noise floor and dynamics and bass. And I don't like the other burmester electronics. Just the phono. I preferred AR LS 27 much more to burmester pre even with the burmester amp. And the LS 29 to the constellation pre with constellation inspiration amp. Possibly with phono it happens because vinyl is musical enough for information to just present itself
In non compares, the Dartzeel phono appears to have achieved the same benefits, though not Pass. I remain in awe of the Aesthetix, which I have ruled out due to three boxes. I was amazed at the transformation in the Allnic 3000 on the recti upgrade. I can only imagine how good the 5000 with the KR recti, the 242 already in it, and the 300b upgraded to the Takatsuki must be. And it is two boxes. I hope to arrange a compare with the 3000 and the Thoress sometime.
However all these are non horn, and with horns and SETs valve phonos have been wonderful, and I haven't had an SS experience except that FM 122 in one of my favorite systems, the yamamura, which happens to use all SS electronics.
So to summarize, Allnic, thoress, airtight on the valve side vs burmester on SS side. I am not going to spend as high as CH. One guy in Texas did move from h5000 to the CH