Paypal is good but you are paying so much fee's with PayPal and its also that you account can get limited.
I think that bitcoin is better with the fee's and its also way more secure, plus you are controlling it by yourself.
if talking security, of course paypal have better warranties. paypal today has been connected with a credit card.
website of the Amazon was using paypal. I think for the collateral issue paypal has an advantage.