Bitcoin address is easier and more secure.

You start with Bitcoin address which you control. You exchange it for website address which you do not control. Hosted on server you do not control. Owned by people you do not know. Advertised by person who either never used bitcointalk or created new user for this thread.
Instead of saying "here, this is my bitcoin address" you say "here, this is an address where you can go to meet a guy whom i never met or know - they will tell you bitcoin address they promise is mine and they will do it for Free". What an easy way, eh?