I have to disagree with both of the current comments here with regards to PIVX. Although both coins are good, however "there can only be one" major crypto to succeed say Bitcoin, let me explain why:
So DASH is aiming at a bigger audience then PIVX and have a strong committed not to mention dedicated team working on it. They will be releasing Evolution later in the year which will assist with the above and ensure that even your grandmother could use cryptocurrency, how cool is that? This is something that PIVX will not have since its looking in the opposite direction. Any new releases with DASH will be released on the DASH platform, any platforms such as PIVX will have to wait to see and try to incorporate these into their own. DASH Marketing is far superior then any other coin out there, not to mention it also has already made its mark within crypto for several years. PIVX is fairly new and has still not made much noise - at present i feel it's being pumped by big whales and the price correction is just around the corner, so you will see a huge downfall when whales sell.
PIVX is a great short-term investment however in the long run, Dash would likely outshine PIVX in terms of user adoption and thus, market cap.
Early adopters would be drawn to the stability of the large user base and convenience as a payment medium, to merchants. The trade-off in privacy and governance would be instant, as they opt for something more understandable and relatable.
RE: DASH Or PIVX