How important is choice of surgeon for orthognathic surgery?

I'm getting double jaw surgery for sleep apnea, and I just found out my insurance won't cover the costs for inpatient hospitalization/anesthesia for the surgeon I want. I have full coverage at another hospital in one of the NYC boroughs, with a surgeon who is head of their residency program. He has 30 years experience and says he has performed over 1000 double jaw surgeries. Is there a massive difference in quality between maxillofacial surgeons?

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