The Cavils seem to have a great investment in protecting the hierarchical order. There’s a suggestion that perhaps the Cavils exist to keep the Cylons honest.
The Leobens tend to be more spiritual and more in tune with ideas of God and man and the relationship with the spirit.
All the Cylons are equal in theory, but the D’Annas tend to try to dominate any settings. They tend to try to become the de facto leader.
The Simons tend to be caregivers and health professionals. The Dorals are more bureaucratic and by-the-numbers and just trying to get things done.
The Sixes all tend to be seductive on some level, manipulative on some level, and insecure on some level. They’re capable of deception and brutality. The Sixes have also become the gateway for the audience to be forced to acknowledge the humanity of the Cylons.
All the models of Cylons share certain traits. You can say that all the Sharons tend to be more naive, more trusting, to be pulled by their heart in one direction or another.
— Ron Moore & David Eick on the shared traits of Cylon models