I initially went with Qobuz since I wanted high resolution PCM when available and not MQA. Now that Tidal has moved away from MQA to high resolution PCM, my advice would be to pick the service that has more of the music you prefer. I think 99.99% of the folks using these services will not be able to detect sound quality differences, if any, for whatever reason. One day, I will revisit Tidal to see if I find any content advantages.
BTW, I'm a Roon user simply because I love what it offers regardless of sound quality which I find excellent on my optimized network.