Concierge.com's insider take:
The Spanish-owned NH Hoteles has become the hippest chain in town, favored by tourists and business visitors for style and location. Its highlight property is the City & Tower, a stone's throw from the Casa Rosada and Plaza de Mayo. The "City" portion, a 303-room, 1931 Art Deco palace, opened in 2000; the tower is slightly newer, with its 66 rooms in granite and dark wood, offset with lime and mustard-shaded furniture. (The seventh-floor rooms have terraces.) Nehru-jacketed staff members pad silently along corridors hung with modern works by Argentine artists. Worth noting, too, is the 1928-built sister property, NH Jousten—long a favorite hangout of the Buenos Aires upper crust, having hosted the likes of Juan and Evita Perón in their day.