Eos: is my personal choice of mine. it will be mooning soon once they finish their ico in june 2018.
it will solve scalability of ethereum and faster than ethereum.
neo: smart economy. its free transferable currency and it generate free gas everyday for you.
ethereum: its one of the best altcoin in the market. eith erc 20 tokens in the market no one can beat ethereum. it has some issues with transaction in the past but now days its going well.
Guys need your suggestion.
Thanks