bitcoin can be a winner because there are more supporters of bitcoin than ethereum and of course another influence is bitcoin can be accepted in various countries to buy whatever they want so that makes more value for bitcoin which can be very expensive and can provide lots of profit to ethereum traders and holders.
what you are saying is a fact and no one can deny that and I totally agree with what you are saying.
the problem is that bitcoin is now worth very high compared to ethereum, so for investments that can be made right now, ethereum is definitely the best way, if you have large funds, bitcoin is definitely the main one.
actually not worth comparing between bitcoin and ethereum because the capacity is almost the same and is very popular, the only difference is because of the value alone. both are very potential to be used as very attractive investments and can certainly experience profits.