The loudest buzz is happening in Dubai. Fashion and beauty editor of Dubai's 'Viva' magazine, Chee Mustafa, says, 'The reason big designers are opening stores here is because of the demand for their product. Dubai is a wealthy city and people here love to shop.' Tommy Hilfiger and Roberto Cavalli have just opened stores in the United Arab Emirates capital, while plans are under way for Armani's Burj Dubai Tower Hotel and Palazzo Versace Dubai. Must-visit stores include S*uce (Sauce) and Villa Moda