Ethereum not so popular as was earlier. It of course has smart contract. But there are a lot of problems at the platform. Most important it is its load with times. As we saw easily to make the attack and all tokens and means at users will be frozen. It is its most important minus.
Yeah, Ethereum is currently the platform for many altcoins in the market and is the payment method for ICO and token sales of many projects. Because of the many values ethereum brings, it keeps its position behind the bitcoin. As we know that Ethereum is the first blockchain 2.0 platform with smart contact, with a very strong founding team that has raised the value and popularity of ethereum in the crypto community.