We should not compare Bitcoin and Ethereum. They have different roles in crypto and in real life, so let them be what they be! Bitcoin is the king and backbone of crypto, while Ethereum is a backbone of crowdsale in the past, and of smart contracts. As we all have see, there are so many coins, altcoins, forked from bitcoin, but nothing can replace bitcoin, and there are and will be more smart-contract-provided altcoins, but they won't be able to replace Ethereum.