I like both Robertson or Torx. Robertson works great provided you have the right sized driver. Torx is very solid, but is kinda specialized and not too common - it'd prevent most others from mucking with your stuff though!!!
I like the firm feel that Robertson or Torx give you when the driver engages the screw properly.
We use either hex head or torx style at work. The hex will strip occasionally, especially if a knock-off or manufacturer mismatched screwdriver makes it into the room. I don't think I've eve seen a Torx head strip.
I agree with the above statements about 'feel', and would add planning and patience to the equation. Pre-drilling and accuracy of screw placement (angle, etc) can make a huge difference. Always ensure the driver has engaged the screw head fully before you turn it even a bit!! If the driver slips in the head, discard that screw and start again. If your drier is the culprit, buy a new one, and a good quality one at that. My work offers almost zero forgiveness on accuracy, and a limited amount of real estate to drill a new hole, so one stripped set of threads or head can turn something thats going very slick into a nightmare in hurry!!! One of my Mentors ALWAYS stressed accuracy "drill, tap, and screw all in the same line, like an arrow to a target!!" he'd say.
-Jer.