What’s the most social bar or venue you’ve found on a ship?

My last cruise was on Mariner of the Seas. The 'Bamboo Room' was one spot; it was where they had the self-led Solo Traveler meetup (which I attended and thought was ok), and it also had an LGBTQ+ meetup (which I did not attend). The other bar I frequented was the Schooner bar since many of the activities I was interested in were there, so fellow cruisers with similar interests were there for trivia or name that tune, etc.

I've said it a few times on CruiseHuddle Live... and I know its gross to most people (including myself) but the smoking area (usually one close to pool) is always filled with folks who are super social. I think its easy to find people in the casino as well. Its super easy to strike up a conversation about a particular game/machine.

On Carnival the Alchemy Bar seems to be the most social spot.