I started with two hives, and I had named them based on their collective temperament - Rose is the one on the left since it's a stronger colony and also a bit more aggressive. Daphne is on the right since the queen is less productive, so there are less bees, and they're more docile. Rose was the only one that produced enough honey last year for me to harvest (Daphne was a little slow getting off the ground), so I was expecting that it would continue to be pretty productive this year. When I say "productive", I mean that the queen lays a lot of eggs, so there are more worker bees, which means more worker bees make more honey.
If I was keeping hives to make money or to have all of the honey I could possibly use, I would replace my less productive hive with a new queen so that I could harvest honey from both hives. But my nerdy biology goal is to raise bees that are adapted to my area, by splitting the strong hives as they grow and letting them make their own queen instead of continuously buying queens from a breeder, as most people do. It's a bit more risky to let the bees make their own queen, since then it needs to mate with males in the area (instead of coming inseminated already, as is when you buy them from a breeder), and it can get killed when it leaves the hive for this mating mission.