What defines a great second-shot course? Is it one that requires you to work the entire bag of irons and hybrids? If so, Leatherstocking in Cooperstown, NY DOES NOT qualify in that respect, while Seven Oaks in Hamilton NY DOES qualify. However, if you are looking for a course that presents different looks to the shots up the fairways (par fives) and into greens (par fours), then you would reverse things. L is a Dev Emmet course from 1928 that hides pins in certain instances, forces left to right and right to left approaches in others, and betrays hole locations in the remainder. Seven Oaks is an RTJ Sr. course that tells you "this is how to hit the tee ball to get to the only place for the second shot."
And off we go...