Several people have mentioned Latymer for my oddball geek son, who's currently in y3.
I went to a grammar school and hated it, not because I struggled (I didn't), but just the whole emphasis of it was ghastly. And the website for Latymer seems rather smug. But, I know someone who teaches there, and she thinks it's marvellous. Different strokes for different folks, I suppose.
I remember Steve Chalke from my teenage years, and as evangelicals go he's really not extreme. I remember some rumpus when he was preaching about church priorities, and swore when getting particularly cross about the lack of church involvement in education and the NHS. And him being cross that people were more bothered by the fact he swore than what the Tories were doing to them (that dates it!). I can't imagine him backing anything that taught creationism-as-fact, or anything like that. Just a bit hard to see what a school will turn in to when it's as yet just... nothing more than an idea. We were going to try to get to the meeting, but it clashed with some other meetings we had to get to!
Yes, the CofE offered to come in and help out Rush Croft (my dh was part of the deanery group being shown round) when their funding for new building etc was cut.
Interesting about Kelmscott v. Willowfield (both schools are our closest). Looking at past years' admission distances, Kelmscott looks more over subscribed, but I'm unsure why that would be.