I don't know if I'd say Craig is the worst mole ever.. I mean, he's the most obvious by season's end for sure, but in terms of actual sabotage, he's done far more than Bill or Kathryn. Bill ended up ADDING 100,000 to the pot at the very end. With only two other contestants left, it's only natural to assume that both know you're the mole, so why continue trying to be a "player"?

I think yes, Craig is way too obvious to us the viewers, and that may make him the "worst mole ever" in one sense, but it's the objective of the mole to sabotage, and in a discreet way. I'd say the fact that probably Mark and Clay had pegged it as Nicole when Clay was executed shows, to me at least, that up until late game, not everyone had it figured out. I think Craig deserves a little more credit for that. The problem is all these clues that we've been given, as ridiculous as they are, the ones that have been "solved" and have a reasonable answer all point to Craig.

It would be awesome if any of the other two were the mole though.