For me it is Monero and Spectrecoin. Both are top notch privacy coins, and privacy coins are going to be the next big thing.
Monero is further along in its development, and more expensive, but also the surest bet in the privacy sector. I expect it to go to $1000 at least in the coming year. It is
that good. However, that would be barely a 3x return for your investment, from here.
Spectrecoin is still relatively lesser known, but starting to get some attention for its superior privacy tech, and is still WAY undervalued at
less than $5 per coin. It is just starting to take off again after a short breather; this could be one spectacular surge coming up.
Long term is where XSPEC is really going to shine. There are several exciting new features on the roadmap, including the
first ever stealth staking protocol in any cryptocurrency, and it is about to receive a sleek new website design that is fitting for this first rate privacy coin. I expect it to reach at least $50 in 2018.
You can find out more about this hidden gem here:
http://coinwiki.info/en/SpectreCoinCome say "hi" to our vibrant and growing community on slack:
http://slack.spectreproject.io/