Hi there, but late perhaps but it might help others..!
I have close friends who have given birth at C&W, the general concensus is that the births were great and the aftercare pretty shabby. I have given birth at Thomas's (also shoddy aftercare but I was swayed by the shiny feel of it all! You don't get to see the busy, noisy post-natal ward on the tour...), and also at
Kingston this year. I was a private patient as I was high risk and nervy after my traumatic birth and "care" at Thomas's, I found my experience and treatment there amazing. Not the private bit so much - you get what you pay for on that score, but the NHS side where I spent my first 24hrs was outstanding. The midwives were rushed off their feet, yet patient, kind and very nurturing towards me, the opposite to my experience at Thomas's.
Good luck whatever you choose.