I think Kim on One World beats everyone. Some might disagree.
I am not sure if there is anyone else. Does Cochran on Caramoan beat everyone? Not sure. I have heard various people speculate one of Eddie, Andrea, or Brenda could have beaten him.
Probst and Dalton Ross said Boston Rob on RI beats everyone but I am pretty sure this is a flat out lie. The jury claim he loses to all but Phillip and Natalie, which might be an exagerration in the other direction, but I am pretty sure he loses to some people.
Could Jeremy on Cambodia have beaten everyone? I have heard some say Kelley Wentworth beats him but I am not sure what the general consensus is there. Kelly Wigglesworth also would have a shot vs him maybe at the end.
Does Mike Holloway on Worlds Apart beat everyone? He might but maybe he loses against Joe Anglim or Tyler.
So I guess we have Kim Spradlin probably for sure and who else. Is there anyone else.