In the age of globalization, some claim that where you live doesn't matter: Alaska, Idaho, and Alabama are interchangeable. The world is, after all, flat. Not so fast. Place, argues the great urbanist Richard Florida, is not only important, it's more important than ever. In fact, choosing a place to live is as important to your happiness as choosing a spouse or career. And some regions, recent surveys show, really are happier than others. In Who's...