While recent economic data suggests South Florida has lost its cost advantage over New York, top real estate developers argue the numbers fail to tell the full story.Key executives behind major residential skyscrapers in Manhattan and Miami argue South Florida is playing long-overdue catch-up after decades of underpriced real estate, while still offering buyers significantly more long-term value."Miami has earned a seat as one of the greatest cities in the world," Naftali Group EVP of marketing, sales and design Danielle Naftali told Fox News Digital. "As people have migrated down here, [and]...