I know zcash is superior privacy technology, the zcash ZK Proof, is much higher quality.
I like to use monero as a case study, I have a love hate relationship with the monero developers because they insulted me on Twitter instead of answering my question.
Nothing like diverting from direct criticism with a question attached, to loose a investor.
Monero is also vulnerable to a flashlight attack, I encourage more pentesting so I can use that to secure my judgement that Zcash is in fact the superior coin.
I used to trust monero around V8, but after realizing they had no plans to stop hardforking I gave up on moneros developers.