Both are worth the investment, but if you want to be practical then Ethereum is good because it's affordable and now it's far more profitable to go up more, while Bitcoin is far more profitable than ETH but it's very expensive. But if you buy it, it certainly gives you lots of opportunities like big income, getting high profits, making you rich soon, but because there is a digital currency, the value is unpredictable because sometimes there is a fall and then going up, so I think it's better to buy this. two cryptocurrency to make sure you get many benefits.