Ritz-Carlton Millenia
Modern and impeccably stylish, with fantastic full-wall skyline views, even from the bathroom, for rooms on the Marina Bay side. Don't worry, it's one-way glass. All rooms are large and equipped with frills like a pillow in the bathtub. Gym, spa, pool and a popular Sunday champagne brunch. Recommended.
Conrad Centennial
New and impeccably tasteful hotel, located next Suntec City but a bit far from the MRT. Very good value for a 5-star.
Marina Bay Sands
The three "card decks" of the Marina Bay Sands will house nearly 2,500 rooms offering some of the best views in the city. Soft-launched in April 2010, but it will be a while until the entire complex is open — expect construction noise until at least 2011, and initial reviews have been full of complaints about glitches small and large. The one advantage to staying here, though, is access to the infinity edge pools atop the SkyPark.