Where to begin? For me, I find her by far to be the most entertaining housemate this year. Her rants are amazing. She's genuine and if she has something to say, she will definitely say it to your face.
She's also really enjoyed this experience, just like us Jayne fans have enjoyed watching her every day for the past six weeks. She may have started off with a bumpy ride, but she's quickly transitioned from that point, and blossomed into the clean queen we all know and love.
And also because if you make enemies with her, she'll annihilate you.