For decades, the fastball has infatuated baseball fans. How many debates in the sports' earlier years centered around which player had the better fastball? Still, to this day, people are talking about who had the better fastball between Satchel Paige and Bob Feller; that is how long the legs are behind this idea.
Kansas City Royals fans would likely have different answers based on what era they grew up with, or their parameters, but it is still a question that most fans would have some sort of answer for.
Baseball America may not have an answer for which current Royals pitcher has the best fastball, but they have a favorite for the best minor-league pitcher.