have to go:
I am assuming that, if she had the choice, OP would rather send her child to the local, good, state school, which doesn't exist. It's not that she wants to send her child to a religious school, simply that if she wants her child to have access to the best education (funded by her, and us) she has no choice.
pooodle, that is absolute nonsense. There are several reasons that SOME church schools perform better than state ones (though not in our area) and one of the most obvious is that they draw their pupils from a group of people who are very unlikely to have deep-seated social problems or suffer from underclass levels of poverty.
As far as Christian values (like exclusion?) go, that too is utter bilge. Our local c of e is notorious for dealing badly with (very real) instances of bullying, because the sum total of their bullying policy boiled down to saying 'would jesus do that?' to the bully.
Our local state school has a very strongly developed sense of fairness, kindness to others, particularly those less able or strong than you, etc etc. Most importantly, it fosters tolerance and a sense of equality. Important virtues, I think you'll agree.