Let's rank the best smiles in Major League Baseball

Researchers claim that a simple smile can improve your mood. If that's the case, then just obviously looking at smiling happy people has to have an effect on your mood too, right?

Let's put that to the test today. Not only will you get to look at pictures of some of the smiliest players to give your day the pick-me-up that neither coffee nor the most intense cat gifs could ever provide, but it'll also be up to you to decide who has the best smile in baseball. This is a serious task. So, get to it.