I prefer Qobuz, sonically. I can hear little if any difference between their streams and my stored tracks of the same music. Like others here, I find their presentation crisper and more lively than Tidal.
Qobuz and Tidal comparison
They are doing serious demonstration.
The conclusion is that Qobuz give more realistic bass and nuanced details than Tidal.
It is because that Tidal use more compression.