I have had the good fortune to play both Shinnecock Hills and Winged Foot. Winged Foot (west) is probably the best course that I have ever played, not sure how well it will translate to WGT but it is a beautiful and difficult course, hence the massacre at Winged Foot in which the winning score was Plus 7.
The course has held US Opens in 2005 (Plus 5 winning score), 1984 (Minus 4 winning score), 1974 (Plus 7 winning score), 1959 (plus 2 winning score) and back in 1929 a guy named Bobby Jones won at Plus 6.
The course has obviously held up well over the years.