The forex of cryptocurrencies, bitcoin as the base.
Ethereum as a platform
Ethereum is an open-source, public, blockchain-based distributed computing platform featuring smart contract (scripting) functionality. It provides a decentralized virtual machine, the Ethereum Virtual Machine (EVM).
ETC or ETH “Classic” is worth steadily about 10% of ETH and it is the underlying asset of the proposed Ethereum ETF.
ETH vs BTC
Ethereum is primarily meant as a smart contract and DApp platform but with ZoE there is also transactional privacy implemented. Confirmation times are much faster than on the Bitcoin blockchain.
They say you need bitcoin to get altcoins but the fiat to alt markets are slowly appearing on previously bitcoin-only exchanges. For the gambling trading you need the liquidity of Alt/BTC pairs though.