My favourite blockchain project is etherium.

Ethereum

Market capitalization: $73 bln
Ethereum is a decentralized platform that works with smart contracts. Smart contracts allow making agreements that are executed automatically without any human interaction.

Vitalik Buterin, the winner of 2014 World Technology Award, and Jeffrey Wilcke, the former Vice President of Amazon, launched the project July 30, 2015.

In 2017, every three out of four projects were performed on the Ethereum platform, making it the most popular platform for ICO over the year.

Around 13 mln people use its services. Its token, ETH, is currently the third among all the currencies after Bitcoin and Ripple in market cap.