From my point of view Neo unrealised potential and on the next bull run can perform better results compared to ethereum.
But I've bought both of them and wait for positive growth on a long distance
in my opinion both are very good and have very good potential for the future. NEO is the king of Chinese coins, while Ethereum is the best Altcoin. both are very profitable in the long run, many people already know their strength so many are interested in these two coins, especially in the future of increasingly sophisticated technology so that many coins compete.