1. Ethereum
2. Accelerator token
3. Cardano
4. Monero
5. ZCash

It's a strange one but the reason I chose Eth was the fact that a lot (most) of these new alts are based in ERC20, so the price of Eth is going to go up as a result, but I doubt that we will see an astronomical rise in Eth prices due to the fact that Eth needs to be expended in order to make transactions with these new alts therefore throwing more Eth into the market place.

Accelerator is the hidden gem among these due to the ease with which you can mine them, and the fact that they were less than $4 in December and are already pushing $20 in Jan 2018.

With regulation on the horizon i see monero and zcash being obvious choices for the year.