Having operated both types, I know of two occasions when the Blackhawk was regarded as acceptable to carry members of the British Royal Family. In fact it was chosen in preference to the Sikorsky S-76C, due to its far better single engine performance. The exceptional strength and energy absorbing design of the landing gear of the Blackhawk is another big plus when it comes to safety. It will accept 500 fpm; to put that in perspective, in theory an instrument approach could be flown all the way to the ground at the normal 3 degree descent angle and the aircraft could be landed without flaring or cushioning the touchdown. I can’t think of another helicopter where that’s possible.