Among your favorite coins, I only own three of them, Grin coin, Monero, and DASH.
I also have not had interests and intention to add the rest twos into my portfolio.
I have some several currecny for most privacy coin we can use to the transaction.
1. Grin
3. Monero
4. Dash
X-Cash has run its promotion for too long, but I don't have interests with that coin, just my personal decision.
What's that X-Cash? I never heard of that as a privacy coin, not even as a coin.