Well, quite frankly Tatis is losing it.
I would say before Votto got "hot" that the top 3 were Tatis, Muncy, and Harper. The Pads are swooning, the Phils are treading water, and the Dodgers are en fuego.
Some could/would say that Joey has been carrying the Reds. But damn, with the time he has missed it is amazing the stats he is putting up.