The wines you can get at every signature and most table services all depends on your price point. All the deluxe hotels have bars and each bar seems to have a special drink. Poly has the Lapu Lapu (I dont drink but the forums are packed with tons of love for this drink.)for example. The bar in Mexico (Epcot) is adored for its margaritas. My mom loved the Pina Colada at Kona.
Disney has many many places to enjoy an adult beverage and a view you might want to combine the 2.
For example the bar at POR has live music most nights. Poly's has a bar at the pool and you can bring the drink to the beach and watch the fire works.