What kind of stats are you looking for?
If you gave him a book, would he read it? The Gentle Birth would be a good place to start and does include a variety of birth studies.
Midwife assisted HB typically are much shorter labors, in the realm of 6-7 hours. Hospital births, on average, are closer to 10-12 (I believe). That time has *everything* to do with the woman's confort level in her environment. Good candidates for HBs are women with uncomplicated pregnancies. Some MWs also do VBACs as HB, though that varies quite abit.
In Sweden (I believe it's Sweden), most births (something like 85% I believe) are midwife attended HBs. The C-section rate is the lowest in the world. In the US, in comparison, where most births are still OB "attended" hospitals births, the C-section rate is now 25% and one of the *worst* in the world.
My husband's biggest concern with having a HB rather than a BC birth was "who cleans the tub after the birth?"
We did have some minor complications at our birth, but to tell you the truth, I had complete trust in my MWs. I know if things had been serious, they would have transported me into OB hospital care. I don't know that I had that same trust in my OB (I know I didn't!)
I really do recommend The Gentle Birth as a starting place for both of you. There's a couple of articles here as well: http://www.gentlebirth.org/
(no association with the book's author).