Do you really think, that someone can give you usefull advice?
You must choose it by yourself. Everone have some favourite altcoins, but thats doesnt mean, that they are profitable to invest.
I think for now Ethereum is the right one for investing now.
NEO is also good though it still lags behind BTC I am sure that NEO can be like other altcoin and Ethereum is still in front of BTC