For me I still prefer bitcoin since it is more profitable but if you want other alternatives, I think next to bitcoin is Etherium or bitcoin cash. They also have future since many investor are also interested on it.
this is a biased question because we all know whats the best one for now,and as we know most of us has a bitcoin in wallets or exchages for trading..but if you asked the 5 major coins we prefer then there might be a difference upon all the given questions.because me myself has lotof desires from many coins and not only bitcoins