They all use masternodes which hold your IP address. Defeats the purpose.
Verge on the other hand use's something called the "blackhole".
Honestly i'm not the greatest with technical aspects. I understand the theory but cant explain it well.
Basically it is just a step up on Monero.
For now it has great momentum.
I'll have to do some more research on the "blackhole" vs the masternodes!
I believe its lack of availability is inhibiting growth. Granted it is relatively new, it has only one mainstream market, Bittrex. I couldn't find any plans to expand their network, but if they did make it accessible on exchanges like Poloniex, HitBTC, Kraken, etc. the value could have the potential to skyrocket!
Already in the works. Check out the twitter feed.