For a place to stay, Shangri-la draws the suited and booted but is also the hangout for beautiful people. The Horizon Club serves canapés in the lounge every evening and there’s wireless broadband throughout.
Even if you're not staying at the Shangri-la, you still must go to the Blu Horizon bar. It's on Level 36, serves fantastic cocktails (and decent bar food as well) and has one of the most amazing views in the world!