Ethereum will act as the king of altcoins in following years. It has been growing steady and stably since March this year. When i see someone compare an altcoin with ETH and claim that it will defeat ETH in near future i just laugh because it's a stupid comparison to shill a coin.
There is no altcoin that can compare to Ethereum because this coin always has a very important position in the market. There used to be a lot of coins like BNB, NEO, EOS compared to Ethereum but in the end there was not any victory for these coins. For me, Ethereum will always be the king of altcoin and any comparisons will be lame.
If you are saying based ont he market valuation and that's true but when you were saying it based on the technical view like the product, platform and anyother, im not sure about that consider about ether has been getting a lot of competitor these days.
ethereum have many competitors today , and even their technical view could be better than ethereum. the main excellence from ethereum at this moment only market capitalization , but in network scalability and many technical issu its still defeated by other project. i am sure someday ethereum position in crypto market will defeated if they postponed new version release.