What is the UX rationale behind picking a doughnut chart vs a pie chart or viceversa?
I'm asking because I'm intrigued as to why a designer would prefer to represent data with a pie instead of a doughnut. Are there any "hidden" advantages of one over the other? Did the designer of the doughnut chart just felt like adding white-space to the pie chart would make it more aesthetic and truly has no added value?
Looking around the web, most if not all of the articles I've found just treat both charts as if they were the same.