Help us decide which manager is MLB's best

No baseball team is complete without its manager. He's the guy who (with the assistance of his coaching staff) makes the tough decisions, and thus the one who receives the accolades (or criticisms) depending on how things play out.
It's a high-stakes, high-stress position, but also one of the most sought-after in all of professional sports -- a level coaches from all levels of the game aspire to reach at some point in their respective careers. 
Using the list below (organized alphabetically), help us find out, once and for all, who MLB's best manager is right now.