Which would be the best and most preferred altcoins to invest in the year 2020?

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?