I agree with Tom on women's forced carries. Going back to the unfairer sex thread, I would also say some tee shots, since forward tees are so often awkwardly placed. I saw one recently behind a hedgerow!
As for average players,
The 350 yard tee shot, whereas for good players, not so much.....
Any shot with spin requirements, since it depends on clean contact and swing speed, both ususally in short supply.....
Long bunker shots.....
Downhill lies.....
Long Irons.......
Playing in front of an audience.......or caddy
For better players,
I disagree with tight tee shots. I think an Augusta 13 concept - creek left, 50 yards (formerly anyway) open space right is harder than any tee shot at Olympic or Medinah.......
I also disagree with a hazards on the low side of a preferred shot pattern, at least many players tell me they prefer that to aiming at a hazard and playig away......
Tough shots include,
Shots with conflicting possibilities as opposed to ones that lay out like a roadmap....
Downhill putts......esp. those that break right (for righies)
Any shot where the player says....."All I have to do to win is......."