ERC20 is currently the best platform in cyptocurrency, we can see a lot of projects that use this Ethereum platform. For others I think Binance platform will be a competitor for ERC20.
At present most projecks use the ERC-20 platform and this has made ethereum famous. ethereum's influence on other coins is very visible today if we see it.
Well, it that change today and some of the investors are looking for another platform just like EOS.
What it happens to Ethereum price today is somewhat affected into scam ERC-20 project existed in the market. Have these ICO projects give doubts to the people and they'll never get assurance for a profit with them. Having this IEO nowadays will bringing back their trust towards crypto and a lot of new investors putting their money on it.