Of course they had incredible kill numbers, it is what they were trained all their life to do. But the droids had numbers and kept on coming and coming with more reinforcements and would eventually overwhelm the Republic into severe losses. The droids were PROGRAMMED to kill, not trained, it would be illogical if the droids had killed more of the clones.
not really "programmed" in the sense you are using it, although I understand where you are comng from, they still showed compassion, in Rise of Darth Vader, this was showed by the clones refusing to kill the Jedi. The droids would just kill, because it is what was programmed into them. The clones were trained to kill when needed. The droids were made and put right into battle, no training whatsoever, the clones were bred and raised for war/battle.