Honestly speaking, bitcoin and ethereum are the 2 top competitors in the cryptos, besides from the 2 being different, since ETH is token-based and BTC is coin-based you can't really determine who really is going to be the topnotcher, the cryptos have pros and cons, some say bitxoin is unsafe, and ethereum is much more secured, and then some say bitcoin is investable rather than ethereum, but honestly speaking it really depends, for me investing could be great if you choose ethereum and trading could be nice if you pick bitcoin, so at the end of the day, I think both are great.