Litecoin/ Dash I would think and really profitable if LiteCoin (or the Silver of Bitcoin) could reach Dash levels. Etherium is B2b and smart contracts, not necessarily geared towards a medium of currency for exchange.
"However, from a general point of view, Bitcoin and Ethereum differ in purpose. While Bitcoin is created as an alternative to regular money and is thus a medium of payment transaction and store of value, Ethereum is developed as a platform which facilitates peer-to-peer contracts and applications via its own currency vehicle. While Bitcoin and Ether are both digital currencies, the primary purpose of Ether is not to establish itself as a payment alternative (unlike Bitcoin) but to facilitate and monetize the working of Ethereum to enable developers to build and run distributed applications (ĐApps)."