It's a tough one for sure. All great shots.
May... 5th hole at Merion is tough to get close let alone sinking it.
March... that's a great putt from the bottom of the green.
June... Slam Dunk. One of those stots when unexpected... everybody would jump in the air with joy.
Geez I really don't know....lol
My vote...
December.... Hell of a shot, close to hole but could end off the green on the other side
-Roger