These are what I think would be the extremes of the four preferences: logic, ethics, intuition, and sensing.
1. Logic. Complete excess: Functioning like a computer. All information would be consciously and systematically processed, calculated, carried out, etc.
Complete deficiency: All of your decisions would be made by feelings and instinct alone, whether they be made by ethics, sensations, or intuition.
2. Ethics. Complete excess: You would experience extreme emotions all the time, similarly to what it would be like in heaven or hell.
Complete deficiency: You would be like a computer in that you would have no emotion whatsoever.
3. Intuition Complete excess: ESP.
Complete deficiency: Everything you do would be done out of routine and every one of your thoughts would be patently obvious. You would have no ability to do anything novel or think anything insightful.
4. Sensation. Complete excess: Being in "the zone" the way athletes can be. You wouldn't consciously think anything, you'd just know how to automatically respond to your environment/body.
Complete deficiency: You would just be a brain without a body or environment that you respond to. You would have thoughts, feelings, and ideas, but no concrete perceptions.