Which houseguest has the best chance of winning season 17? With the end of Big Brother 17 in sight, which houseguest has the best shot of getting to the end and winning the $500,000 prize? Are Vanessa & John Getting Ready To Blindside Austin On The Next 'Big Brother' Eviction? There are only five houseguests left in the Big Brother house, which will be down to four by the end of tonight, and three by the end of tomorrow night.