I like what PIVX have done, its pretty smart when you thing about it - and rather obvious ( with hindsight
They take a coin thats people like in concept (Dash) and fork it.
However its way more trustworthy than Dash as its not mega premined.
Many people (including me) have refused to buy Dash due to the size of the premine.
However I've bought PIVX because its got the qualities of Dash without having the premine the Dash has hanging over it.
I also like they way they explain the anonyminity of PIVX. Its not 100% anonymous they way Monero is (pretty much)
But its anonymous to the extent that in order for someone to trace you, they would need to invest A LOT of time and money. And its fast.
I think PIVX and Monero will both do very well in the future. They are both addressing the privacy problem in different ways and doing it well. Use Monero for making transactions that HAVE to be private. Use PIVX for general transactions where speed is more important. Well played PIVX team!
Dash its enjoying its time in the sun now, but I think PIVX will overtake it in the not too distant future