George:
I think #16, Corner of the Dyke, is under-rated, and sometimes lost in the shuffle among the more well-known back nine holes like #s 11, 14, 17 and 18. The key is the original Principal's Nose bunkers, a great center-line bunker complex that forces players left, but makes the approach into the green much harder. The bold (or foolish) player plays right of the bunkers, between them and OB, for a much easier approach shot. A helping win can negate the bunkers' strategy, as some just pound the tee shot over them. But with a wind against or sideways, a wonderful strategic choice off the tee.
Watching players approach the second shot to the 12th's shelf-like green is fun stuff, as well. And #7 is a nifty, shortish dogleg with a blind drive.