It depends. If by centralization you mean control of the mining power by a small group of people, then Bitcoin is a lot more centralized than Ethereum. It's j

It depends. If by centralization you mean control of the mining power by a small group of people, then Bitcoin is a lot more centralized than Ethereum. It's just that the response to the DAO problem was one of consensus, instead of the response to the block size issue in Bitcoin, where they behave like playing a zero sum game and every proposed fork is rejected by someone.