Interesting that the USA doesn't seem to use Pozi.
In Australia and NZ -
Pozi are by far the most common in building/construction (although everyone refers them as Phillips colloquially) with square drive there after. Cheap/poorly made hardware from China will at times ship with Phillips instead of Pozi (or JIS), you can always tell because Philip screwdrivers are easy to strip in comparison and require slightly more talk to tighten I think.
With machined screws such as those used on electronics the most common for commercial/industrial would probably be Torx, followed by Pozi. In cheap consumer gear it's probably a mix of Phillips and Pozi.
Really no one should be using Phillips in this day and age, it's horribly dated - easy to strip and low torque.
I'm sure it's not a factor in their general popularity, but from an aesthetic point of view I think Pozidriv is inferior to Philips; pozidriv fastener heads look messy with those 45 degree tickmarks. But both are inferior to Robertson/Square. Those look the most neat and trim of any screw head.
In Australia and NZ -
Pozi are by far the most common in building/construction (although everyone refers them as Phillips colloquially) with square drive there after. Cheap/poorly made hardware from China will at times ship with Phillips instead of Pozi (or JIS), you can always tell because Philip screwdrivers are easy to strip in comparison and require slightly more talk to tighten I think.
With machined screws such as those used on electronics the most common for commercial/industrial would probably be Torx, followed by Pozi. In cheap consumer gear it's probably a mix of Phillips and Pozi.
Really no one should be using Phillips in this day and age, it's horribly dated - easy to strip and low torque.