maypole - when it comes to education I'd chose te person with their best ability to deal with a class of 30 and the one who is best at putting information across, rather than someone who has the best grade. So much of teaching is about way more than the actual subject knowledge after a certain point. Obviously you need to be well read in your subject, but there is no point in having a double first from Oxford if you can't get a class of 30 to understand what you are saying.
So, who do you want teaching your child:
Double first Oxbridge teacher who can't talk to the children in a way they understand??
or
Third classification degree from on old poly but who has a real rapport with the children and can pitch the inforamtion at just the right level so they understand it?
Now obviously these are two extremes and most are somewhere in between, but just wanted to make the point that in teaching it isn't always the person with the highest qualification who makes th ebest teacher.