Someone made a point about childminders being perceived as a working class form of childcare and that has been my experience to date.
I looked up and rang a whole list of childminders before returning to work and I was disappointed by the quality of the ones I saw.
Most didn't drive and therefore couldn't do the school run, took their maximum alloted number of kids, one had realistic-looking toy daggers and guns (which I don't allow DS) and the TV on the whole time.
I got the impression that for most of these childminders, they were doing it for the money and the kids were left to entertain themselves.
At DD's nursery, the staff are not 18-year olds, they're mature women who've been there awhile, they cluck over her, there is a cook who comes onsite to do the cooking so the staff do no cooking but help feed the kids and cleaners come in in the evening to do the cleaning so the staff who are responsible for looking after the kids do just that.
My very long winded point is this - it doesn't matter whether you pick a childminder or nursery as long as you are happy that your child is getting the quality of care that you would be pleased with.