bitcoin superior price at the moment, but to invest in generating huge profits in order for bitcoin certainly need a big capital. Unlike the ethereum which can still be used for investment despite the small capital and thus more profitability more. so for now for me is probably more promising ethereum.
Both are in the form of high risk investment , meaning it could fluctuates in no time but the thing here is what are the things that affect the prices of each respective coin that I have mention, I always say reputation , and both coins has gain a lot of reputation in the market , next is the investor although both has a great volume of investor bitcoin has a great advantage in terms of investor , last will go for bitcoin , bitcoin can affect ethereum when it goes up and down so between the two , bitcoin is greater than ethereum.