Fort Lauderdale Airport Hilton used to have complimentary liquor in their lounge. I also remember being served a flute of bubbly in the hotel lobby when we were checking in there. But that's been years ago now. I've just recently made Hilton Gold, so I'm not that knowledgeable yet.
We used to be fairly high in the Hyatt program, and I can think of several US Hyatts that had complimentary liquor. Here's the trade-off: the lounge would only be open for a short time in the early evening, i.e. 5-7pm. Then it would all, food and drink, be put away. (As I recall, Hilton ran things the same way, stuff was only available for a short time.) If your business ran past 7pm, you were SOL, and the lounges tended to be very crowded when they were serving.
In the long run we prefer being able to use the lounge until 10 or 11 pm, even if it means paying for drinks.