This is what i think, both Ethereum (ETH) and Monero (XMR) are has good potentials and are both positioned to do well in the future, they are good investment opportunities. However, while Monero will have a growth rate of +556.54%, Ethereum is expected to offer a growth rate of +781.22% basically because of it's smart contract and the dapp features, over in the next five or seven years. So from a pure investment point of view, Ethereum offers a better opportunity. I go for Etheruem.