EOS is now ranked 5th on coinmarketcap.com, with a market cap of $14.6 billion against the 6th ranked Cardano, whose market cap is now $9.6 billion (figures correct at the time of writing). Which Is A Better Investment?
In my opinion, you should invest both to reduce the risk! Currently, Cardano (ADA) vs. EOS (EOS) are well appreciated, have large number of exchange and still improving.