As the winner of season one, Ryan was recently ranked as my #1 player all time when it comes to my survivor series. Playing a strong social and strategic game, Ryan happened to win what I believe to be the most difficult season I've hosted so far.
I expect Ryan to be an interesting case, as he doesn't know many of the current cast members. Otherwise will either look to him as an ally, or pick him off early because of the fact that he has won already.