Right, and I still like the ring of Windsor. ? But as I already responded to the initial poster @FashionMaven,
"there is too recent an association with Edward VIII (David)," who as we all know (because it's impossible for it to recede from memory that quickly):
"abandoned his duty to his family and country." Added to this serious drawback is the fact that David had numerous character flaws and he would not have been the right person to serve as King of Great Britain during WWII. Even before he died, King George V was worried about his son David inheriting the throne.
Again, @cmsteepy made a good case for Clarence. We will definitely find out. For the poll, it looks like Sussex is winning over Clarence by about half (nonscientific).