Hardy is over rated. If anyone of the candidates benefits from reputation it would be him. And he has his "pop".
As you know, I don't care for UZR and UZR 150. They are poorly formulated and subjectively accumulated stats.
You don't need a weatherman to know which way the wind blows. I can see who make the plays and evaluate his strengths in the requisite skills.
XB is pretty good, overall. But the glovey flashy types usually win.
Case in point. Kevin Pillar. Yeah, he made a bunch of spectacular plays this year. But is he actually better than Betts?
Too bad JBJ played only 74 games this year. He is clearly a Gold Glover.