ETH  is the most popular platform on the planet for creating and launching smart contracts. Smart contracts work with code that helps support complex tasks such as exchanging property, money, or other similar assets. It also functions in the development of decentralized Autonomous organizations (DAO)
NEO  has its own unique algorithm dBFT. Unique energy savings lead to fast transactions. NEO allows users to run a decentralized application and does not work with any particular programming language, but can be created in Java, Go and C++. One of the reasons for its success is its support from the Chinese government

NEO will not be able to make a hard fork, while Ethereum has already been divided into two coins: Ethereum and Ethereum Classic. NEO functionally superior to Ethereum.
NEO is much faster when compared with Ethereum. It can hold 10,000 transactions per second, when Ethereum is only 15. This major flaw for Ethereum has led to a long-term scalability plan that can solve the problem.