I don't think that even the most prestigous private hospital in the Philippines would be as good as an NHS hospital. With regard to your sister-in-laws experience, long labour and only giving performing a cesarean section as a last resort, I believe it is standard practice these days to always allow nature to take it's course unless the woman has had to have a cesarean with a previous birth. As to why they sent her home twice I dont know, but I'm sure they must have had good reasons.
Iain.