Insofar as ETH vs ADA, I'm personally more interested in ADA for multiple reasons of personal and speculatory interest, but I see two things at play: the overall market size for the smart contract blockchain ecosystems will only grow, while ETH's market share will take a hit. As a scientist, the peer reviewed component to ADA cannot be over-estimated. Financial institutions, governments, health care records...trust in the peer-review process is what has driven our advancements.