Pat, A re-occurring observation I find in the annual Pebble Beach bash thread is always the lack of articulation on why someone does not like a particular hole. Apparently when you don't like something, you need not justify it with anything more than, "I didn't like it".
I've tried to convey my descriptions of what's on the ground and often will state why I feel the way I do about a hole. The best example on this thread (and the others) surrounds the old 5th v. new 5th debate. The rebuttals are lacking in why they like it so much. At least Sir Thomas of Huckaby tried, and, if I recall correctly he stated that the coastal aspect was it's strength, or, why he liked it better.
12 is head scratcher, especially for the infrequent visitor. It has bunkers well short on the line of instinct that I don't believe I ever saw anyone get into. However, one does see them in their mind's eye as the club is taken back just before the swing. A fronting bunker that protects the left 3/4's of the green. The key bunker is the one just short and left of the putting surface directly next to the apron. IMO, it is key because the apron is where the conservative, or thoughtful player should be aiming. If the player misses just slightly right of the apron, the leeward bunker slope kicks the ball toward the putting surface, where it can go down the gentle hill towards the pin position, or get below it. The 12th green test players similarly to the way the fourth hole green tests players, except the 4th tests the accurate direction of the approach, while the 12th test the distance control of the player. It's that similar narrowness that is another re-occurring motiff throughout the course. Even on some of the bigger greens their subtle sections dictate how aggressive the player can be when putting.
Ok I'll stop now and see if anyone cares to take on your challenge.