There is no way to generalize the hotels in Miami-Dade County. They range from grande-dame Moorish castles to trim art-deco towers, from opulent high-rises of the 1950s to monolithic towers of the 1980s and 1990s. They're concentrated around the airport, downtown, in Coconut Grove, Coral Gables, Brickell Financial Center and, of course, along Miami Beach.
The hottest spot in the Miami area is the Art Deco District in South Beach. The 1920s and 1930s hotels are being remodeled faster than you can say "pastels." Everyone will tell you which is their favorite—or maybe their not-so-favorite—but at last count, there were more than 60 hotels crowding the ocean in South Beach. You should be aware that these hotels were built when rooms were much smaller than they are today. Many hotels have sidewalk cafes. It's a madhouse on weekends—noisy and fun. Beach and ocean are only 100 yards/90 m away. Newer, larger hotels with bigger rooms have opened, are in construction or are planned on Miami Beach.
The Brickell Financial district and Coconut Grove areas are also rapidly developing accommodations for visitors.