[gafftapegreenia]

Robertson all the way. Of course I assume we are talking scenic and construction jobs here.

The biggest downside with Robertson is that if you use the wrong size driver and strip it out, it's harder than a stripped phillips to remove. With the right driver, it is near impossible to strip, plus, the square head holds a screw, so you can pop on a screw and reach in a tight space and not have it fall off.

Both Robertson and Torx and great improvements on slotted and Phillips. However, where Phillips and slotted gain the advantage is that, for the rest of the world, you can fudge your way by with one or two slotted and phillips head drivers your whole life and turn almost anything you come across. With Robertson, Torx, Hex and all the rest, you need to proper sized driver if you want a shot at turning that screw. Maybe fine for tool junkies like me but not everyone seems to want a box full of drivers when one or two in the junk drawer has been fine.