What do you think which will be the best alternative of bitcoin in 2018? Ethereum, Litecoin, Ripple, Verge or Zcash?
I think it might be ETH, ETH is the smart contract. It actually affects the whole cryptocurrency market, so it's possible to go beyond bitcoin.
Yes, ETH may be the best option, because at the moment, people only recognize ETH in addition to bitcoin, but don't recognize other altcoin.