bitcoin can win, bitcoin anonymous and easy use, bitcoin can get rerturn because bitcoin price fluctuative
paypal is very dificult use, must verified, and can't get return
Bitcoin really overtake paypal in terms of the features it has, and some of the paypal users was shifted into bitcoin already. And because of the anonymity of bitcoin, and decentralization which paypal doesn't have any of it is the main reason why bitcoin winning the race in online payment.