I found Kauri cliffs the better option for us we also tried cape kidnappers ,both were splendid, the rooms and food were superior at Kauri, but in both cases it comes down to personal taste, we are quibbling over fractions of points and menus or colours, you wont go wrong with either.
The views we felt were better at Kauri, and the golf course was rated 14th in the world last year by golf magazine, where as cape kidnappers a mere 40 something, both incredible. Enjoy.