Which is better: Cats or dogs? Peanut butter or jelly? Ketchup or mustard? We all love a good comparison question, and the world of intermittent fasting isn't immune. Judging by online searches, the people of the internet are often eager to learn which intermittent fasting schedule comes out on top. Let's put a couple of heavyweight fasting schedules into the ring and find out: 12:12 vs. 16:8.