My picks (not in order):

1.- ETH: no stopping them as lead in ICOs and Dapps in the short run
2.- LTC: the payment alternative as Charlie Lee and the foundation continue to focus on increased adoption and scaling
3.- BTC: will remain king and determine the market direction
4.- Dash: Lots of work being done focusing on technology and adoption, not marketing.
5.- STEEM: I’ve been hooked since discovering the platform and am amazed of the potential the blockchain technology could do with this community approach