Answer:
Of these three theories, Schachter's cognitive theory of emotion makes the most sense to me. I believe that our emotional experiences are shaped by our thoughts and beliefs, and that our physiological responses to stimuli are only one part of the equation. For example, if we see a snake, our physiological response might be to feel afraid, but our interpretation of the situation (e.g. "this snake is venomous and could harm me") is what leads to the experience of fear. Therefore, I think that cognitive appraisal plays a crucial role in determining our emotional experiences.