Kyrathaba, you're onto something, but a couple of features might make it even more useful. What if you had a "hate" option? Most people only really pick from the top half of their list right? So what if there was an "Accelerated Mode" where you click any number of items "that belong in the lower half of your list" (you can rescue one later.)
So on a 30 point list your program would be as exhausting as the real life version, but if you just click "I hate coffee, licorice, tomatoes, ratatouille, green & yellow peppers, onions, lima beans, escargot, pickled mangoes, anchovies, and blueberries", then you save a zillion comparisons.
Then you can decide if you like chicken more than steak, coke vs pepsi, tacos vs enchiladas, etc.