I think, ethereum will be a wiser choice over bitcoin in terms of long term investment. Considering the price, ethereum is cheaper than bitcoin as of now. Putting that into perspective, you can buy more ethereum than bitcoin with the same amount of money. Second thing, bitcoin is very valuable now, and so as ethereum. Ethereum has dropped for a while this month, but I expect it to rise up in the coming years. In the span of 5 years, you can profit more in ethereum than bitcoin.