Before the Ryder Cup last year, I always thought that #10 at the Belfry (Brabazon Course) was a great short par-4.
Great risk/reward, perfect match play hole, particularly in fourball play - let your shorter hitting partner play safe, then you go for it.
The angle of the green and its narrow shape, and the water looming, made it a thinking man's hole. Unfortunately, Sam Torrance moved the tee box back and right, esentially making it a boring hole. Changing/lengthening it was unnecessary - especially for the Ryder Cup.