Who is the most successful brain surgeon in the world?

Determining the "most successful" brain surgeon can be subjective and dependent on various metrics, such as surgical outcomes, innovations in techniques, or contributions to neurosurgery. However, Dr. Ben Carson is often noted for his high-profile surgeries and groundbreaking work in pediatric neurosurgery, particularly for his separation of conjoined twins. Other notable figures include Dr. Alfredo Quiñones-Hinojosa, known for his expertise in brain tumors and contributions to cancer research. Ultimately, success can vary based on personal definitions and specific achievements in the field.