In dash network all transaction are really anonymous and this is a final purpose of BTC project . i think dash and monero are best of alternatives ....
Only because of anonymity?
Although Dash at its core is an anonymity-focussed cryptocurrency, by now it has reached a point that it is capable of offering a lot more.
To understand what Dash have to offer more i will have to talk about what differentiate Dash from other cryptocurrencies :
Dash has a two-tier system, one tier is the POW mining that can be done with Dash, the second tier is the Masternode Network that enables
a Proof of Service protocol which not only helps with the Darksend mixing but also enables Dash to offer extra services on top of it. Extra services like
InstantX and having a decentralised budget system setup on blockchain level which will give it far more control over its own funds and last but not least
receiving revenues (income) from running a masternode (47.5% per block, to be extended to 50% in 2016).
These services have only recently been added and many more services will surely follow.
And to add to that : just like bitcoin should not be judged by its bitcoin price but by the use of the blockchain and the development of technology / services behind that blockchain,
Dash should not be judged by its current price but by the use of its two-tier system and the technology / services behind that.....