ETH's been crushing the market since the start of 2017. It all started when the Ethereum alliance was announced, which was the first major publicity stunt that attracted most people (i'm not saying it was a complete stunt, but it definitely helped to make the network seem legit), and that's good of course because that's what the blockchain needs overall to develop, more people who will use the applications and the coins developed. This is just the start for ETH though, just wait until all the new cool features are implemented with time and you'll be surprised just how strong ETH will be. It's just a matter of time and eventually it will become true, the coin that will offer the highest value is the one that will be number one, and that's ETH.