Bitcoin has evolved out successfully to be the most widely accepted cryptocurrency. It can be used directly as payment for goods and services online or through debit card although there are still some merchants yet to accept it. Bitcoin is the only outstanding coin which can be used purchase all other cryptocurrencies.
I don't think bitcoin will be like money, altcoin too.
But If you asked which is suitable be like money, I think bitcoin.
Because bitcoin is most popular and has been known by many people.
The popularity of bitcoin will increase day by day, although there are many negative issue against bitcoin.
That's the proof bitcoin is the best of crypto currency and good asset for investment.