User blog comment:WreakerOfClash/My ranking of the antagonists./@comment-27157772-20170724055457

It is hard to say that Scott is a better villain than Heather, but you are right. He is witty and got rid off all of his original team except for Lightning. (He and Jo swapped teams if you can recall)

With that said, I would also swap Mal with Scarlett. My reasoning is that Mal, while obvious and boring, had some sort of leverage being one of Mike's multiple personalities and impressionating Mike causing most contestants to believe that Mal is actually Mike. Obviously a few (Duncan and Alejandro) realized this while they were still in the game and tried to warn Zoey (the latter having more of a success). Scarlett, on the other hand, did nothing game-wise. That is not saying that she's a villain, just not a game-orientated villain like the others on the list.