Skye wouldn't be going head to head with Priya, at least that's how I understood that. That leaves either Teflon or David. Since David is already old news, let's hope that she has a good go at Ryan, would like to see some feathers rustled to understand these people better before the finals.
I'm pretty sure Ryan has a very good chance of winning this game, due to the relatively low exposure, being the image of the 'good guy', being appealing to the teen girls and all of that. Everyone else has some negativity associated with them, but Ryan has been cruising about pretty much under cover and only a few forgotten scenes to give him a bad name.