Kyle doesn’t hate Stan at all. They are best friends, dammit. Also, I don’t remember Kyle actually hating Stan. He was being very pessimistic in that episode, and what did you expect the kid to do?

Find out in Ass Burgers

Neither! I would say Ms Stevenson. But if I had to choose between these two it'd be Cartman.

@CraigTucker2001 They became friends again.