I think it will be Tezos. A really big project, work on which goes every day. Another great project is Traxia the first project on Cardano. Neo and Nem too did an excellent job of improving their software.
Nope you are wrong with that the only has a possibility was ETH but not right now mayby after 5 or 10 years when all of the projects of ETH are completed. This year still Bitcoin will be the king of the crypto and no one else.