Padraig:
I'm not one who often agrees with Greg Norman, but I've got to defend him here. "Building" a golf course on a great piece of land is not so hard. "Extracting the most from" a great piece of land is a far different thing.
As to your question, the two situations are entirely different tests. Neither of them is easy. It's strictly a matter of opinion which is the "ultimate," but I can tell you which is more important -- great pieces of land don't come along nearly so often, so it's a real crime when somebody fails to make the most of them. There are lots of courses on "B" land, and if some fail to inspire, it's not surprising.
Cary:
Whistling Straits did start off flat, but with two miles of lakefront I don't think you can fairly describe it as dull. If you gave other architects the same license and budget that Mr. Dye enjoyed, I think most would come up with something okay.