If there's a PayPal payment mode, it's best to pay by PayPal, just in case of any disputes over the purchase, at least you have an easier way of getting your money back. Especially when dealing with difficult sellers and give you all sorts of excuses just to avoid refunding you. PayPal is definitely a safer mode of payment.
The secret of life is honesty and fair dealing. If you can fake that, you've got it made. - Groucho Marx (1890-1977)