It was Ethereum and Ripple for the year 2017 and 2018/2019 had been bearish without any particular altcoins to be preferred we have seen almost all the altcoins going through bloodbath except few exchange tokens like BNB but which will be the most profitable altcoins for 2020? Will it Ethereum again or some other altcoins like litecoin or BCH or Ripple?
its not exactly true
ethereum and ripple werent the best in 2017.. there were like 30 altcoins which were a great investment in 2017
and the whole market is in bearish 2018/2019
i believe that in 2020 there are many good projects to invest in including ethereum and ripple
ADA ETC ZEC QTUM are good choices too