Exactly you told appropriate there are no any Altcoin to challenge Ethereum till now. Ethereum is best Altcoin right now. It’s position 2nd in coinmarketcap and all cryptocurrency market. And it’s popularity increasing day by day. Even now it’s popularity huge. So i also think Ethereum is king of all Altcoins. And never Neo or any Altcoin better then Ethereum.
Well, I have never experienced the Neo blockchain so I do not understand clearly about its features and strengths. All I know about Neo is the speed of 10K tps, Chinese Ethereum and was once very successful in the bullrun 2017. Currently, the Neo blockchain has almost disappeared in the crypto media flow, Neo is no longer mentioned on Youtube or Telegram channels, we do not even know the latest updates that Neo has brought to its ecosystem.
Besides NEO, the only token in the Neo ecosystem that I know is GAS because it also had quite good growth in the bullrun 2021. High speed could not bring success to Neo when it was not chosen by whales in the market, perhaps because its token was diluted and the accumulation process would require huge efforts from whales. In terms of many aspects such as security + ecosystem development + price increase + popularity, Neo is no longer able to compete on equal terms with Ethereum, Neo has been left behind and at risk of being forgotten.