The contenders:

Fake Patois - loved by the youth ranging from those with nice middle class parents and a stable loving household to those with a single parent and a pitbull as a father figure.

Mockney - loved by Essex boys who pretend not to be from Essex and annoying pop bints eg Lilly Allen, Kate Nash etc. Useful to adopt this accent when talking with tradesmen.

Fake American accent - loved soley by desperate actresses who have been in the US for a month. And possibly Vikram.

Fake posh accent - loved by those who pretend they aren't working class, normally students or aspirational footballers. (yep I'm struggling here)

Anymore? Any opinions? Anything?