The Monerolink PDF has been answered by https://getmonero.org/2017/04/19/an-unofficial-response-to-an-empirical-analysis-of-linkability.html

That Monerolink PDF was written in part by Andrew Miller, who is on the official Zcash team (https://z.cash/team.html). That removes any impartiality which, being an academic, he's supposed to have. And, as seen in the link above, the faults they find with Monero can be easily debunked and/or those faults no longer apply since they've been fixed and have been fixed for some time. So, it's just FUD, but do your own research and see for yourself.

Here's a comparison of privacy-centric coins: https://moneroforcash.com/monero-vs-dash-vs-zcash-vs-bitcoinmixers.php