We had them for the first time last week at Narcoossee's and they were delicious! Very little filler, all fresh crabmeat. DH and I regretted only getting one order, we BOTH should have ordered the crab cakes! I got the buttermilk shrimp, which were good but not nearly as good as the crab cakes.
For a 1TS restaurant, I've heard the 50's Prime Time Cafe has a good crab cake and so does the Liberty Tree Tavern's lunch menu - although I haven't personally had either of them yet.