I agree with
@tbone1004 --in the US and much of the Caribbean. When I was a fairly new diver and started reading about the merits of DIN, I became a DIN disciple and bought DIN regs. After several trips to the Caribbean and FL Keys I got tired of finding the dive ops' rental tanks had either had yoke-only valves or, if convertible, that internal corrosion had frozen the plug in place. The dive ops with those convertible valves generally offered help when they saw me struggling to remove the plugs, but I got the feeling it was an annoyance to them. Often, they had to check a couple of different tanks for me until they found one they could remove the plug from. When I started venturing to Asia, I found the same sort of yoke bias. Sure, some resorts that are frequented by more Europeans than Americans offer more DIN valve tanks.
Eventually, I replaced the DIN couplings on my regs with yoke. I'm in the market for new regs now, and I'm going to buy Deep6 with yoke. Never mind that for cave diving all my other regs are DIN. For vacation destinations, I'm taking yoke regs.
P.S. I never liked the DIN-to-yoke adapter, as the space it took up made the reg sit too close to the back of my head. It has been pointed out in similar discussions that they only add maybe a half inch, but whatever the number, it's enough to make a difference to me.
P.P.S. It is possible to swap DIN for yoke couplings on a reg in preparation for a trip. It takes a few minutes, the right tools, and you might also want to use a torque wrench to torque the coupling to the manufacturer's spec. Admittedly a minor task, but enough for me that my vacation-diving regs remain yoke.