I have no doubt that if I went to the hospital I could have a good birth. But I am a stubborn, overbearing kind of person. And now I have 4 births under my belt and know how it's done :p A lot of women do get bullied into a birth they don't really want at the hospital, though.
But in the end, for me, I don't like hospitals. I don't care if I could have a good "normal" vaginal birth there. I don't want an IV, I don't want a hep-lock. I don't want anyone telling me anything I can or can't do about food or drink. I liked that DS3 was born with no lights on, just candlelight. I liked that I had DS2 and DS3 in the water... not just laboring in the tub. I liked that I had my baby, got into my bed, and stayed there cuddling my LO without having to "go home."
There's just a million reasons I liked being at home. Having run a website on natural birth for 5 years now, I also understand that a lot of women choose differently. I have tons of birth stories on my site and many, many of them are from great hospital births - I read all of those and I respect the choices of all of those women.
But for me, I can't imagine having my last 4 births in the hospital would be in any way as awesome as it was having them at home. I have no doubt I could have had nice hospital births, but I'm glad I didn't go that route. I deal with hospital/medical staff during my pregnancies for u/s and other tests we opt to have - and those are generally good experiences... but in the end I want to have my babies at home with no interventions and no procedures :) It works for me.