I think the 2 coins have a very big potential for the future and suitable in use as a long-term investment. This can be seen from the fundamental analysis of the 2 coins is very Good which ultimately can increase demand. It is possible that ETH may be greater than BTC because ETH is a smart contract / blockchain technology and the platform is widely used by third parties, but because BTC is the father of blockchain technology so the world's crypto community will always prefer BTC as an investment.