That doesn't work when the 'right' choice depends on user preference. The designer can't make a single right choice, because there isn't one in the vast majorit

That doesn't work when the 'right' choice depends on user preference. The designer can't make a single right choice, because there isn't one in the vast majority of cases. I am reminded of Malcolm Gladwell's talk about tomato sauce. Some people like chunky. Some people like plain.