I think ETH will have really good returns vs BTC in Q1 of 2020.
But, if you find a project that lost 95%+ of its ATH and is still alive and dev/community is strong, with own blockchain or real use case and partnerships(ENJ is one) those will be the next gems in the next 12-18 months. Buy the dips and be patient. Once this train starts, you will be handsomely rewarded.