I own both the 216570 and the 126710blnr, and I must say that the 216570 finds more wrist time than the Batman, which was not my expectation going into things.
I find that the Exp II, despite the larger case size, wears lower on the wrist, and has more of an everyday driver vibe. In light of the modern proportions the Exp II also feels more akin to a tool watch. The Freccione 24-hour hand is a great homage to the 1655, and as such caries a minor vintage element.
The GMT-II is beautiful in its own right, but carries much more of Rolex’s modern luxury-first, jewelry-forward air.
Particularly in light of COVID where for me, personally, there’s less of a need to track three time zones, I find that the 216570 is the go to piece.
Also pairs incredibly well with alternatives to the brushed bracelet in my opinion!