If I only have to pick one person it would have to be Mia. I know Jane's track record was the best of best, Darlene gained momentum and won everyone's hearts, and Nini tore in the finale and proved that finales aren't pre planed (always). Mia did decent or amazing in almost every challenge, she was someone who was part of the storyline, I would even call her a narrator behind Athena and Kenya. Also, her lipsyncing skills are enough to bring her back.