I find my preference have swung toward more advanced complications as my collection grows. While I love all the watches in my current collection, just having the time and date isn't scratching the itch anymore. I mean, how many more divers do I really need?
I love calendar complications such as triple date moonphase, annual calendars, and perpetuals. The ingenuity of just using wheels and levers is amazing to me. Unfortunately, what I like are expensive and so I'm doing more research before I pull the trigger in another year or two. Some contenders are the JLC perpetual 140.2.80 in rose gold at 37mm and the Patek 5146 annual calendar. Some pictures for reference that I pulled from Chrono24.