[smudgie]

I can understand JJ staying over Ben, mainly because he has a very large fan base. But Dave is another kettle of fish.
Perhaps it is due to all the brown nosing Dave has been doing with JJ, making him less of a target for the JJ fans. Ben on the otherhand would not pander to JJ, hence the fans voting him out.
Now why JJ has so many fans is beyond me. But I do know the editing has been very biased this series. JJ is getting away with so much, it is unreal.