I don't think you can mention the best payment method online without mentioning the PayPal method of payment, one of the advantage of using PayPal Is that, it's easy to handle. Just organised.Very serious PayPal is one of the best payment option which someone can use its one of those payment option well secured but I don't use PayPal because in my country we can only sent money but we can't just accept so perfect money is the best for me