I think that the only the best are able to survive. Now we're stepping into crypto decade.
This is true. Eventually only the coins with a genuine use-case will survive. Those that don't will slowly fade to nothing, but we are a long way from that point. I would imagine we have years of volatility and speculation-driven prices ahead of us. The bad coins will disappear, yes, but for now and the medium-term future they will remain.
As for the coins you mentioned, I like ADA. This coin does have a real use case and a great development record. It is perhaps too early to judge them, but the potential is certainly there.
I also really like ADA, which is one of the top 10 altcoins in this market. But I'm quite worried about the current status of this project, they don't have too many big updates. And they don't do any promotion to help the price of the token go up, if in the future they don't have a clear strategy then I think other altcoins will surpass ADA.