Which privacy coin do you think will out last the rest in 2018? And why?
Monero (XMR)
ZCash (ZEC)
Navcoin (NAV)
PIVX (PIVX)
DeepOnion (ONION)
Verge (XVG)
Spectrecoin (XSPEC)
Sumokoin (SUMO)
I think I would pick Monero and DASH as the best and the most secure ones here. Meanwhile, I have recently met online curious video, where the guy (Crypto Oracle channel) shares his viewpoint on this topic:
https://www.youtube.com/watch?v=9D3ZaOCXQFE