You beat me to it. I can barely understand the Geordie accent, LOL, I used to do a good Scouse accent. I am good at an Irish accent.
I have a Glasgow accent, my friend (who lives 15 minutes from me) has a Falkirk accent and they sound totally different. Heck Gordon Brown is Scottish and he sounds nothing like me.
I would love to know what accent everyone actually classes as British. I'm guessing it's an English accent, probably London.