Which eth to buy?

This is a difficult question! There are so many different types of Ethereum, and it can be hard to know which one is right for you. My advice would be to start with Ether Classic. It's a great option for beginners, and it has a lot of potential for growth. If you're looking for something more advanced, I would recommend Ethereum Dark or Litecoin. They both have great features that will help you maximize your investment. Whatever you choose, make sure you do your research first! There are a lot of scams out there, so be careful where you invest your money. Happy trading!