As a European unfamiliar with Robertson-head screws, I just had to look them up in a fit of feverish excitement. Imagine my disappointment to find out it’s just a square head.
Philips-head screws aren’t really used in new designs any more (though they’re still widely available), having been superceded by the similar looking Supadrive head, which in turn has been replaced by the also-similar-looking Pozidrive head. If you use the right size bit there shouldn’t be too many problems with cam-out, and in particular, don’t use a Philips screwdriver for a Pozidrive head and vice-versa.
There is a trade-off between shear-resistance of the bit and the screw head rounding off or camming out. A triangular bit will give good torque, but will be prone to shearing. A square bit will be less prone to shearing, and a hex bit will be very resistant to shearing, but more prone to cam-out. The best compromise between the two criteria I’ve found is the Torx bit, which is very resistant to both shearing and cam-out.
For the record, here’s all the popular screw heads. And if you’ve got a particularly stiff fastener that you don’t want to chew up, I can highly recommend a diamond grit paste smeared on the bit to lock it in there.