We are currently booked into the Family Birth Centre at the Angliss (due 12 days away!), and have been extremely happy with the midwives and the support from the hospital so far. We went for a tour around the whole hospital and were happy with what we saw. I've had lots of friends and people go there and they have always said good things about it.
We were originally booked into Healesville Hospital, but had to change at 20 weeks due to H'ville closing it's maternity ward suddenly. The midwives at the Angliss took pity on us and were very accommodating and made sure we got a spot at the Birth Centre.
When we have actually delivered there, I'll come back to report on the experience for you.
As for Box Hill, my brother and sister in law have been there twice in the past three years. The first was a c-section as bubs was breach, and the second was going to be a VBAC, but bubs just didn't want to come naturally, and it ended up being another c-section. They have been very happy with Box Hill, but it is a bigger hospital, and they sometimes felt more like a number than anything else. The bonus with Box Hill is that it is one of the best hospitals in Melbourne for anything baby related. People are actually referred there from city hospitals because of their surgeons and doctors.