I would probably convert them all to BTC if you are not confident to the rest of the coins but obviously there are many of us supporting ETH when it comes to being an altcoin. Of course its one of the top in the smartcontract race. Some are also converting their investment to some smartcontracts though, its up to you. Leave XRP behind. not worth the wait. Look at how much it has been in 10 years.
This one is for real. Eth has bright future, but we have 0 idea when it (eth2.0) will come around, 'til that eth will be somewhere between $200 and $300.
Neo has potential, it is relatively new and fresh so I'd let it stay in your portfolio.
But only god knows why do some people still believe in xrp, it just constantly falling down