Both currency is volatile , in terms potential profit ETH can give higher profit compare to btc while btc is much more secured compare to ETH  in terms of price dumping .

In two I will choose to invest in bitcoin I am much more afraid of having   ETH, if they will continue having many failed project  And allowed to use their platform for many kind of  scam  investment, it can reduce the potential investors and will be the reasons for another dump of it. Unlike btc that's already proven and tested  for more than 10 years.