Yes Ethereum is the most popular altcoins that had a good platform and great potential in the future, but remember don't put your all eggs in one basket you need to split your investment in other potentially coins just in case.
Yeah that's right i agree with you man, do not put all your eggs in one basket, it means don't put your all investment in one altcoin. It's better to split your money in a different altcoins that had good potential like Ethereum, Litecoin, and Neo.