Bill,
I certainly preferred Biltmore to Crandon. Biltmore is very much strategic golf, with excellent bunker placement. Certainly not the strongest set of Ross greens I have seen, but far better than typical FL golf. In all but a couple spots (where it's really bad), mowing lines are great, rewarding aggressive tee shots.
Short, flat and palm-lined? Short, yes (under 7K from the tips), but Biltmore is all about angles. Many holes have you hitting less than driver off the tee unless you want to challenge bunkering and/or shape your tee shot. Flat? Yes, as is most Florida golf, Crandon included. Palm-lined? Nope. I don't know if there was a lot of tree removal in the Silva restoration or your source is just wrong, but Biltmore has a very open feeling. Trees are used sparingly (holes 1, 5, 9 10, 14 and 18) and in almost all cases (not 18) are used to add strategic interest.
Crandon is fine. Perhaps the $180 green fee is impacting my opinion of the golf course. Some really interesting tournament greens, notably the 11th which is one of the most unique I've ever seen. Par 3s are definitely the strength of the course. Too many doglegs that look and play exactly the same and the mounding around every green could use a bulldoze. Also, the fact that the course is walkable but they won't let you walk (especially since it's a muni) really bothers me.