Eric...
I love the question and would love to hear others thoughts and opinions.
I think you are spot on regarding the bunkering at Ballyneal. Sublime perfection? I think so. Here is a shot of 7...
I like a lot of the stuff that Coore & Crenshaw do as well. Sand Hills was simply off the charts bunker/green interaction. But here is a shot from another one of their courses on one of the par 3's and the bunkering. I thought it was incredible.
Here is a short par 4 that Fazio put together at World Woods Pine Barrens. I love how the massive bunker makes you want to take the "safe" route to the green, but really that isn't the play.
I think Mike Young's Longshadow gets it right.
Although not my favorite course, Tobacco Road has some incredible interaction.
But here is one, from a course I love East Lake, that I really don't like. The shot is interesting and exciting, but I dislike the look and blend of the bunker and the green.
And here is another one from a course I love (Harbour Town). I love the look, I love the huge bunker, I love the small green...but I would love to hear others opinions on the interaction between the bunker and the green. Bunker too big, green too small, approach angle too goofy, or just right?