User blog comment:Epic~00/Ranking Total Drama Characters By Morality: Part 3 - 32-23/@comment-5221692-20140801204218/@comment-24971793-20140801213440

Alejandro's ultimate downfall was that he got played/used by Heather, which was awesome. Cody showed regret towards Sierra, let's not forget she's a stalker. And as you said he lost the competition as soon as he lost her. Duncan ... got away with waaay too much, which like you said caused a lot of hatred in the fanbase untill he finally reveived some karma (still too little IMO). Justin used everyone: boys, girls, animals,... but he lost his "powers" in TDA. I don't think he's a very liked character either.

Unlike the above, Sky is portrayed as the right one in her situation. Dave got completely wrecked and received a ridiculous amount of "karma" for doing very little harm. Sky isn't evil and she's supposed to be innocent and loveable, but the writers wrote her (I assume by accident) very unflattering. It's not ok to abuse people, even not (especially not) when you're "strong" and they're mentally unstable, "weak".