I think that Bitcoin is better than Ethereum. Yes, Ethereum is the king of the ICO, and lots of tokens are based on its' Blockchain. And in case lots of people will decide to go into their own Blockchain, where the Ethereum will appear?
we don't need to argue here anymore, Ethereum was present a few years ago and proven that bitcoin is still in the top marketcap, it means people prefer and are comfortable to use bitcoin as the main crypto and Ethereum as options, there is nothing to worry about anymore