I have to agree about #5 at Merion. I am looking forward to seeing the stats there next year.
#9 and #18 at Old Marsh.
#14 at Tavistock in New Jersey.
If you have ever seen the movie "Who's Your Caddy" (and I pray you have not, for your sake) you saw my home club, Woodside Plantation, with the match ending on our 5th hole, which most members play like a par 5. In the movie Big Boi holed it from 230 yards to win the match, but I have not seen that done in real life.