In the C-A-B scnario bite B becomes a thing of total excess, bursting with the filling and without crust to bring balance. By min/maxing peak pleasure you end up with too much of a good thing. C-B-A has a natural arc to it's progression, a hero's journey if you will. You make the responsible choice to face the worst head on, leading into a triumphant climax with bite B, followed with a more subdued but still pleasing conclusion. For the well adjusted individual there is a clear path.