Whether you prefer the cabana life at Andaz or an extended spa day stay at the treatment-touting Ritz-Carlton, here are five lavish lairs to lay your head in Miami this winter. Donatella Boutique Hotel & Restaurant | 1350 Collins Ave. Leave it to Miami to give the Italian Riviera a run for its money. The new Donatella Boutique Hotel & Restaurant — housed inside a 1920s Mediterranean Revival apartment complex that was lavishly restored by the same architect who did Gianni Versace’s mansion —