I think its a matter of different approaches to anonymous transactions. We use a secondary block chain called a "Subchain" to direct and manage our anonymous transactions as they are encrypted, randomised and routed through the Anonymous Network. This approach is unique to Nav Coin and it has some inherent benefits, the primary one being its resilience. The system runs purely off two block chains, not relying on a database or any extra data storage to mark transactions as "waiting to process" or "processed". This means if our anonymous servers were blocked / deleted / taken down / destroyed or whatever, we could simply start up a new server somewhere else, restore the wallet.dat files and the servers would resume processing transactions without loss and without needing to worry about backing anything else up apart from the wallet.dat files.

Secondly, because we use two block chains, we are able to break the transaction chain between sender and receiver. We have a pool of NAV waiting to be sent on the outgoing server, which can be sent as soon as the outgoing server receives the instruction from the subchain. It doesnt have to wait for the real NAV to arrive because of the nature of how block chains work and the way the server is coded, we can trust the amounts recorded to the subchain as correct and send the amount of NAV from the pool before the sent NAV arrive. This means the NAV recieved are not able to be traced back to the NAV which were sent no matter how hard you look at the NAV block chain.

Third, we are coming fast to the point where we can decentralise the anonymous network and allow other users to setup their own processing servers. When this happens, users will be able to earn NAV for processing transactions and we will become the first fully decentralised, double encrypted, anonymous system running purely off block chain tech! Wow, what a mouthful!

So that's the technology, lets talk about features.

We are working towards being the first anonymous crypto which can send anon transactions from the mobile wallet. That will massive. As well as anonymous merchant integrations, the raspberry pi staking unit and a few other things currently on our road map: http://www.navcoin.org/projects

Even if you were just to consider us to have the same features as DASH or XMR, then that still makes us hugely undervalued by at least 10x - 100x

By the way, i think the other anon coins are great and you should definitely look into them. See if they fit your needs and if the technology fits your ideals. Having multiple options in the financial privacy sector of cryptocurrencies is definitely a good thing. If there was just one, then firstly there is no competition to innovate and secondly it becomes a single point of failure. We offer a secure alternative, based on different technology served in a way which we believe is the best approach. We are part of the array of tools you can use to protect your financial privacy on the internet and we support the efforts of all the other anon coins.

That's my 2c anyway