The poolside Wet Bar, along with the W’s secret-garden Grove and lobby-level Living Room, are among the city’s most stylish, creative, and buzz-worthy nightspots, thanks to a combo of master mixologists who shake and stir up some of the most creative—and pricey—cocktails you’ll ever quaff; the celebs and locals who swill them; and resplendent settings with Instagram-worthy photo-op backdrops.