In my opinion, you should do your own research.
Dont pick any crypto just because other people say it is going to RISE TO THE MOON in 2018, or because you saw a 30% increase in 1 day.
I cannot stress this enough, dont do what other people are doing but think for yourself.
Dont be one of those FOMO people.
Be critical and look at each coin from different perspectives.
Give a man a fish, and you feed him for a day. Teach a man to fish, and you feed him for a lifetime.
I believe ethereum is the answer, I don't see any coin like this one. We can see their history progress ( price action, volume, news ) that will give us description how good this coin and worth to become the next after bitcoin. Most people will agree with me and if not, they didn't see clearly.