I can only speak from experience of using PulseAudio and JACK. Both have been working well for me for a long time so I have not considered a replacement is necessary
The only knowledgable opinion I have seen so far is a recent video from Unfa
Is PipeWire ready for audio production (in Q4 2021) ? - YouTube
He did not show benchmark data from recent PipeWire tests as expected, but advised he has reverted to using PulseAudio and JACK
But this was mostly focused on comparing JACK and pw-jack
IMO discussion of PulseAudio vs PipeWire is a false dilemma and Linux audio is more of a quandary if you consider that there is more to Linux audio than 2 conflicting sound servers