Though taller and sleeker than the Mandarin Oriental, which it faces across the Chao Phraya River, the Peninsula lives somewhat in the shadow of its illustrious neighbor. Yet when you compare all aspects of each, the Peninsula comes out very favorably. Rooms are generally bigger, and views, especially from the upper floors, are far superior. Furnishings are a perfect blend of traditional Thai and high-tech gadgetry, such as remote-controlled curtains. The bathrooms with marble counters are so stylish you'll want to stay in there all day, but then you'd miss the chance to visit the spa, set in a lovely colonial-style villa, and all the other wonderful facilities like the top-floor lounge bar and superb restaurants.