Bitcoin has the network, is scarce and is the most decentralized and the most secure. As a store of value there is nothing like bitcoin. Ethereum is great for many other things but it will face more regulatory problems plus is less decentralized so the risks are higher.

Author of ´Bitcoin For Mere Mortals´ available @Amazon. Subscribe to my blog: albertoguerrero.net/subscribe and you'll get a copy of my book.