I still think hands down James made the stupidest survivor move, because 2 idols...3 tribal councils...etc, etc. you all know it. Jason's blunder I really think was pretty minor. Either Natalie was playing fans v/ faves or she wasn't. If it was him v. everyone else, and he didn't go this time, he'd go the next time he didn't win immunity. He was taking a risk that he'd actually found an alliance, which was really his only chance of winning anyway. It would have been quite reasonable for the fans to take that opportunity to shift the power away from the faves, who were taking a huge risk to let it get down to 4 fans v 4 faves. I think his mistake was not talking to more people and trying to ascertain how real Natalie's loyalty was, but really his chance of winning was almost nil anyway. The people who I think made the bigger blunder were Amanda, James, and Erik who were all on the outs of the last vote, but had a chance here to grab some power.