I think 20 years ago the submariner would have won. Tastes have changed and the GMT has a little more soul; and offers a more everyday practicality. How often do Sub owners dive? Compared to GMT owners travelling??
Plus, Rolex has done much more to promote the GMT line than the Sub with the first ceramic being a GMT (LN), the Batman, and of course Pepsi. The Sub has gotten far less attention. This has brought much greater attention to the neo-vintage GMTs than the S...
I’ve never got my head fully around regular use either a 24hr bezel or 12hr bezel as on my Oris. Practically speaking, the rotating 60 minutes bezel is something I use routinely when I cook or watch my kid’s sport.