Bitcoin and Ethereum are two of the most popular digital coins today. In terms of value, bitcoin is much larger than ethereum, but in terms of potential, ethereum is quite capable of dealing with bitcoin. So you think which one is better?
The answer is simple: Ethereum. Ethereum is a different beast than Bitcoin. Developed by genius programmer Vitalik Buterin, it does many things as Bitcoin, but its main purpose is to be a platform upon which decentralized applications can be built.
The primary difference between the two is in their blockchains. With Bitcoin, the blockchain basically records a type of contract, one that says that some digital funds have moved from one digital address to another. Also, you can run some simple applications on top of Bitcoin's blockchain. Ethereum expanded this significantly. The scripting language is more advanced, and its smart contracts can be complex applications with a far wider range of uses.
BTC is indeed as the upstairs as a kind of gold inside the digital currency of the same attributes, and ETH is more and more practical applications in the real world landing, such as for ICO, and then extended a lot of landing projects, If you have to compare, I think ETH has a higher value, but the actual use value is higher! BTC is just a belief in existence. 
