I bet the offensive stats would be rather similar if Arenado played 78 fewer games each year in Coors field...or if Ant'ny played 78 more games there each year himself...certainly on a 162 game average.
No doubt...Ant'ny has been bitten by more injuries.
I watched Arenado make 3 errors in one game against the Nats several years ago...wasn't terribly impressed. Reminded me of the hype surrounding Royce...