of course bitcoint is no one of his other coins, because bitcoint is a crypto currency, where we enter the trade and the price can be higher then many people around that use bitcoint
Yes,bitcoin is the number 1 and no one can replace that because bitcoin now is growing up the price continuesly and we have chance to become rich because of bitcoin and i think bitcoin in the future will popular and people use it and people invest it so that
Bitcoin is the numbet 1 or all currency even in the fiat money.