My sister, and a lot of my friends have given birth in Italy, and I agree that it can be a lot more medicalised than in the UK, most of all, you are not given much choice. Pain relief is unheard of and the only people I know who've had an epidural were those having a C-section, breech babies are nevr attempted to be delivered vaginally or even turned aroun before birth. Women have to give birth in stir-ups and do not even know that there other positions to try.
Inductions are carried out by the end of the first week you're overdue. (at least this is what happens in the town where I come from, I think larger towns are more advanced in their approach).
I did find though that as far as antenatal care is concerned in the UK this is practically nonexistent, my sister had blood tests every month and after her due date her waters were examined every day to make sure they were still clear. I know a lot of people here in the UK hate internal examinations, but I think that anything that can help have a healthy baby is welcomed. (A friend of mine lost a baby in the UK beacuse of meconium, and I can't help thinking that if she had been in Italy this would not have happened).
Post natal care is though virtually zero, and nurses do not help you with breastfeeding (after a few hours from my niece's birth a nurse popped in to say that my sister should have put her to the breast, but did not stay to check how was getting on or to show her how to do...), they also give babies sugared water until a mother's milk comes in, which I find amazing (why not formula then? at least is more nutritious than sugar!!!).
To learn how things were done in the UK I started buying pregnancy magazines from the moment I found out I was pregnant, so by the time I went to my antental classes I knew more or less what my options were and I was able to ask questions about things that I was interested in.
As all the others have said, the best thing is ask ask ask, visit the hospitals if you can as well.
I don't know about Spain, but in Italy private care is not very expensive, my sister's gyneacologist cost about 30-40 pounds a visit and he was working at the hospital as well so he delivered the baby as well. It may be an option if you find someone you trust.
LOts of luck!!!