Which is better, Ethereum or Ethereum Classic?

Could you please elaborate on the differences between Ethereum and Ethereum Classic, and help me understand which one might be a better choice? I'm trying to make an informed decision about investing in one of these cryptocurrencies, but I'm having a hard time grasping the nuances between them. Could you also discuss their respective histories, functionalities, and potential for growth in the future? Thank you for your assistance in this matter.