I don't deny that Cardano (ADA) and Ripple (XRP) are good altcoins, but you don't take Waves into account, in my opinion these altcoins will be better made into future investments than Ripple and Cardano
Yes, agree with your opinion about Waves, in this bear market I heard they collected a lot of money in their Vostok private sale. And Vostok itself is part of Waves, that means it has something to proud of and advantage that we will see in the future.
while honestly, XRP did nothing so far.
lastly, ETH is not that bad too, let's see how fast it will be once they finish their hardfork.
+Waves I believe it's a better hold than allot of altcoins now. Volume is up daily and Sasha is making another big announcement tomorrow.