As of right now Monero is clearly the best privacy coin. Let's not forget 3 years ago XMR was around $0.50 and still working on fixing a lot of previous issues. That's how I'm treating XSPEC and will continue to hold both of these coins. 

For the person who was wondering how a PoSV3 coin can maintain privacy with staking, the devs are working on a proof of stealth (essentially anonymous staking) slated for Q1 2019. IF they succeed with that, I don't see any reason XSPEC can't be the PoSV3 version of Monero. Both use ring sigs, stealth addresses, XPSEC has native TOR integration while XMR is working on Kovri. Stealth staking and some version of RingCT would put them neck and neck tech wise, so I'll see how we look coming into 2020! Patience can be rewarded in this space.