There are many good altcoins in the market currently but I like Ethereum more than any other altcoin because it's stable and it has potential to reach higher in future and it can be used as payment to many websites and many people prefer use Ethereum as payment so it's good.
There are many opinions about Ethereum, but the high commissions make it very difficult to work on this network. On the one hand, it is good that the price of the coin is growing every day.
Plus, the Ethereum network is overloaded. Hopefully 2.0 will solve this problem. In general, the developers still have work to do.