There are many altcoin options available in the market but I believe Ethereum still holds the edge.

Ethereum changed how their blockchain operated as it's inspired by Bitcoin but based on an improved technology that makes the transactions easier. There are many amazing projects getting built using Ethereum as a platform. Hence if some of the applications get popular in the market, then its a win for ETH as well.

Many experts predict ETH will in the top of crypto currency but that's for the future to tell.