I'm not saying Alfredo Simon is better than David Price. I'm not even saying that Alfredo Simon is on his way to being better than David Price. The "ace" title implies, at least in part, a track record of consistent greatness that goes beyond occasional flashes of brilliance, even if those flashes last for several months. That being said, Alfredo Simon, by many peripheral and even non-peripheral statistics, is pitching like the Tigers' ace. For how long? Who knows. But for now, the man is pitching out of his mind.
Here's a quick look at some of those "side bar" statistics.