I agree with AndyJK reasoning but for one thing. It's far to late in the series to worry about BB becoming as entertaining as BB should be. Lisa's annoyance to the public is I think greater than the late late benefit she would bring.
Let's face it BB4 cannot be saved from it's lack lustre reputation. Because it has lack lustre this year. It's about as facinating as eves dropping on the conversations on your local bus or train journey. Heres hoping for BB5 if there is one.
So yes. Vote her out. Might as well have that litte bit of sadistic satisfaction as no doubt the booing brigade will be sharpenning their vocals ready for her.
