I would suggest to put in both like 1 Ethereum and 7.5 Neo. Both crypto is potential and has good market cap with growth prospect. Ethereum is a sleeping giant in the current situation and no one can predict it's growth for future, anytime it could rise to a highest price. Neo is a slow and steady crypt, it always sustain in a price for longer periods in a good price range. So, option is to invest in both to be safer or have good profit in either of the coin in future.