Wow, thanks for all those carefully considered/researched responses - really useful stuff...
To be fair Joseph Hood's stats aren't terrible, but they're not all that encouraging either... But what really puts me off is the environment - run down, cramped, no outdoor space to speak of, shoehorned behind an Adult education centre and a Surestart centre... It's just a bit depressing, tbh, especially for my lively, outdoorsy run around girls, and not what I hoped for them.
Re: the church places, we made the decision very early on not to "play the game" rightly or wrongly... We've been attending our church (very out of area) for ten years - both as single people, then as a couple, now as a family. The church is our family, to an extent, and we wouldn't dream of leaving it for a school place... Don't get me wrong, in my weaker moments I do sometimes think "oh why didn't we just..." but really, it was never a realistic option for us. Bishop Gilpin at least 'stream' applicants by their level if involvement, and really, we couldn't be more involve where we are, so at least we're in band 2 for foundation places, we'll just have to hope for the best. I don't think we have a snowball's hope in hell for Holy Trinity, Priory or St Matthews, but we might as well fill in the forms and stick 'em down, it's not like we'd be cutting out heaps of other options!
Hillcross looks really interesting - I'm going in a tour on the 1st Dec. I'm a little puzzled why a primary with an 'outstanding' Ofsted report managed to offer places to 100% if applicants last year... I can't believe that the SW mummies haven't caught on and have a nagging fear it'll be hugely oversubscribed this year... Still we're only 800m door to door, so we ought to be in with a chance.
In other news (I've been a busy girl) I'm going to look round the hall school next Wednesday and they seemed optimistic about the prospect of a place being available... Something to do with being able to expand to meet demand? Anyone know anything more about this? 
Also the Study seemed to indicate that they have a fair but of movement within their waiting lists and a place may well come up, so I'm registering there (they're waiving the fee until they are able to offer a place, which I thought was a kind gesture, and going to visit early January.
I'm also going to visit Ibstock and Prospect House, who were less optimistic but said it couldn't hurt to register in case a place arose mid-year or even for entry at yr1 if we weren't happy with where DD1 ends up... I really liked the look for Ibstock - a little unconventional a bit Steinery/Montessori-y was the impression I got.
Haven't contacted Hurlingham, old Vicarage or Merlin, or the Ursuline yet. Need to do a bit more homework on them first.
My plan is to basically get as many irons in as many fires as possible and see what happens...
Thanks so much again for all your help - any more info on any of the above - especially the Hall and The Study great fully received...
Sorry for the mahoosive post 
db
xx