I like the new coins that run as 'competitors' to Ethereum etc, and that are so new that getting in on them now will prove very useful in terms of future gains.
Having said that, there is not one single coin (I find you can't be attached to any coin these days) and some of these are DAO maker, CONV, XEND, CATE. All are new starers and for me that's what I'm looking at for long term gains.
ETH has not done much, and that's way I started looking at new projects. In my opinion now it is a good time to go through our portfolio and make the necessary changes...
Apart from the coins you mentioned above coins like BNB, ADA, and Polkadot are also good,
and so far it looks like the development of the three coins is good and in coinmarketcap they are also at the top,
and for a long term investment those three coins are also good