Doctors (Which takes place mostly at Grant and Riverview, not Doctor's proper, actually), Is a good program. It is easily the least malignant surgical program I've seen in any specialty. The residents are all easy to work with, very laid back, and I got a good sense of 'family' from them.
Grant is the major trauma center in Columbus, so you get a good mix of traumatic spine, and cranial. Whereas Riverside does a LOT of fusions (5th in the country), Vascular, and tumor.
The 2 main neurosurg attendings at Grant are pretty damn awesome. One is laid back, cool as a cucumber, with very high expectations and trust of his residents. The other is a bit more on edge, with EXTREMELY high expectations for himself, his residents, and patient care. That is not to say he doesn't joke around, have a good time, etc.
There are ~ 15 attendings at Riverside in various specialties, along with a handful of Ortho guys at Grant that residents scrub w/ on spine and other neuro cases...
Cons: Grant's OR turnover and efficiency is the absolute worst I've ever seen in my life. It's atrocious, and often makes a day that should have been done by 4, last till 8 or later... Riverside on the otherhand is as efficient as any surgical center I've been to...
Their selection of residents is based on your rotation there. They don't 'interview', but if you perform well, work hard, and get along with the crew, you'll probably get a spot...