I find that for smallish construction screws like M5x60mm typically used a lot in GB Posidriv is better than Torx because an impact driver will destroy any Torx

I find that for smallish construction screws like M5x60mm typically used a lot in GB Posidriv is better than Torx because an impact driver will destroy any Torx bit smaller than T25 the first time you use it. For bigger screws, Torx is the winner. T10 Torx bits shear off or get twisted quite easily as I discovered when trying to unpack some windows that were secured to the pallets with a bunch of small Torx screws