It depends on how you vew the whole BB experience.
In my view, it's a game and there is a particular way to play it. Those who have a plan and "play the game" should be given the merit for it. They are trying to win, and thats the whole point. These are the ones I like to try and keep in.
The other view is that it's a popularity contest, and that everyone should be straight and truthful, and the viewers pick whoever is being themslevs and is also being nice. This bores me, cos you're left with a load of "nice" people, who really aren't that entertaining to watch.
But, whichever view you have Lesley has to go. She is neither playing the game well (in my view anyway) and while she may be being herself, she's not all that nice a person.
Get her out