how could a gypo win bb.

I think it was just the fact of who she was up against makes her seem like the favourite winner. If Sam, Corin and John had been in the finale with her then there wouldn't have been such a clear winner with such a high percentage.

not for me.

SHe was okay.... A bit over rated in my view

Terribly weak competition led to the high % as others have correctly said.

Had the final been Josie, Sam, Johnjames and Corin she probably would not have won again the Australian.