Galahad
Regular
Well, to be a bit pedantic, it's my understanding that in the original BSG series the robot-cylons were not created by humans but by an extraterrestrial reptilian race that were also called "cylon". At least, that's what Wikipedia says.
To be a bit more pedantic, according to novelizations of the first few eipsodes, the cylons are technically speaking not robots but cyborgs. Higher ranking cylons have an additional brain section and the Imperious Leader had a third brain section. I gathered their power structure was a bit like queen bees being fed royal jelly.