If I were to select the most profitable coins for an ATH this year, then they would be:

1. Steem
2. Bitcoin
3. EOS

My reasons for selecting these coins are based on their real use case. I think we have reached a point where the market has realized the importance of the real use case of a crypto. There is no way that this amount of volatility would remain if we had people keeping their tokens, just like they keep their money. 

It's the same with anything in the market. Imagine gold - if people one day decide to sell all of the gold they hold in their possession, then we would have a crisis in the gold market. People don't do it because they trust gold as a good store of value. So being a great store of value is one of gold's real case use in the world. 

If people can find a real case use for a crypto, then we will have a truly solid growth of that token. 

1. STEEM: It is the best social media token that we have. So the real use case of Steem would be its use in the decentralized social media apps. It would leave other tokens far behind in conquering this market. Real use case - social media.

2. Bitcoin: This is the biggest driving factor of emottion in the market. I think Bitcoin will become the 'gold' of this market and in this manner we will two have the real use cases for it. First real use case would be store of value and second would be digital payments.

3. EOS: This would be replacing Ethereum as the big daddy of New projects. EOS is already approaching that stage where it would be the fastest developing blockchain for years to come. EOS based tokens would be soon flooding the market as ERC20 will go out if fashion. Real use case - Blockchain development, ICO's, etc.