When it comes to altcoin Ethereum is always the best place to make an investment and if you have patience to hold it longer then you will surely earn some good profits on your investment.
In altcoins, I also see ethereum having the most potential of surviving and multiplying in the future. It has been number one altcoin for a long period now, that means it has something in it which dominates others. I have heard majority saying that it is going to touch 1k dollars before the beginning of 2018 and honestly speaking, I have same expectations from it.