I am probably in danger of outing myself through this post but here goes.
As a well qualified and very experienced early years worker, and more importantly as a parent, I have to say that I used to work at one of the nurseries mentioned above. I would NEVER send my children there.
The nursery that I would recommend wholeheartedly is St Nicks. Whilst you must look beyond Ofsted reports, you cannot get a good report by having links with the local authorities as has been suggested.
If you live in Tower Road West then the children attending St Nicks will be your neighbours and children's future classmates so to dismiss it due to the deprivation of the area seems pointless. Because of the intake the nursery has fantastic links with professionals who support the children, including Speech and Language therapists.
As a charity run nursery they are not motivated by profit so do not cut corners with staff like others do with ratios. They often have childcare students and supernumerary staff so the ratios are fantastic.
As an early years worker I would say the absolute most important thing to consider when looking at the nurseries is staff. I know St Nicks hasn't lost any staff for years. To retain such employees who are low paid and doing long, exhausting hours, makes a motivated and dedicated staff who truly love working with, teaching and nurturing children.
Good luck with your search.