I liked Kim's interview. Seems like she has a good head on her shoulders.
As far as Nik being conniving...well like it or no, she's been playing the game a helluva of a lot smarter than anyone else. She's quiet, keeps to herself, does awesome, works hard, and keeps totally out of conflicts that may distract her. After all, it's a competition not a sorority right? And as far as competitive edge goes, Nik goes far and away above the others. That doesn't mean however that she's being eeeevil (a la Ebony from season 1) in her attempts to keep to the competition. She's just minding her own business, and concentrating on her work, which is the smartest thing anyone could do in that situation. If she wins because of her strategy, I'd say awesome for her.