They are both cryptocurrency but they have different unique characteristics. Comparing bitcoin to ethereum is useless..I. The first place bitcoin will always be the king. It is important to understand well their differences. Ethereum is one of the altcoins. Alternative coin for bitcoin.
comparing btc with eth is not useful, as you say bitcoin and ethereum both have advantages and disadvantages. but it is impossible if eth exceeds btc, because btc will always be the best king and coin