Under normal circumstances, I would consider it ludicrous to argue against a guy hitting .327/.402/.531/.933 winning an MVP award. The 20 HR and 87 RBI certainly strengthen the case for Buster Posey at least being in the conversation. He plays the most demanding position on the field, and he accounts for 5.5 WAR this season on a team leading its division by 5.5 games.
Then again, an argument can be made that he does not even rate as the best catcher in the NL. Yadier Molina has put together a career year, and he deserves as much consideration as Posey does (if not more). Yadi’s line of .321/.373/.505/.877 with 18 HR and 65 RBI falls just short of the offensive pace set by Posey, but the debate does not end there. Posey gives the Giants 5.8 oWAR but just 0.1 dWAR. Molina gives the Cardinals a more balanced 4.1 oWAR and 2.2 dWAR.
One of these players provides a lot of offense and happens to play catcher. The other plays catcher and happens to provide a lot of offen...