I don't know why you have decided to compare these two coins, but I like XEM more anyway. Maybe because I know cardano not good enough, but if I invest in one of two these coins I will choolse nem
Why isn't cardano good enough?
Cardano has always been active developer, the code is updated quickly, so it's also the top token.
if we look at the market level Cryptocurrency the price of Cardano is far better than NEM, so I assert that Cardano is much better than NEM. with a high enough price, Cardano can make it as a coin Reliable that has many supporters to take be a coin that so good.