I think Luna, Avax, Cosmos are bringing competition and functional development like Ethereum. Trends and demand responses in crypto change very quickly for the development of strong capital flows from first-advisory trust. But I think ETH will still deserve to be the king of altcoins for many more years when ETH 2.0 becomes the main strength.
ETH is still unbeatable by other altcoins even though ETH 2.0 is still a long way to go for a lot of people to see because until now there are still a lot of people willing to trade with ETH even though it's also not bad to have to choose Luna, Avax, and Cosmos because they too compete well in the crypto space.
it's true that ETH is still undefeated and not even one of the selected coins can beat ETH any time soon.
However, if we look at the ones that have the most potential to be like Ethereum in the future, I think Luna and Polygon have a very big opportunity to be able to compete with ETH in the future because developments that are being carried out now continue to run on a positive trend and are able to slowly attract the crypto market.