Tulo is the best, until his defense regresses. At which point Simmons's bat will have improved to a level where he's putting up 6-7 WAR seasons routinely. There is also a wave of stud SS 'spects who should be hitting the majors in the next couple years that will have something to say about dethroning Tulo.
So in other words, it's still Tulo for the next two to three years, at which point Xander, Correa, Russell, Lindor #etc will be established and Andrelton will be putting up MVP caliber seasons.
:yup: