selly24 I have not had time to read everyone's comments so I may be repeating. Here is my experience.
We didn't think about schools till we were matched with a specific child.
Our birth dd was already at a local school and due to logistics we had only two choices, the school dd was at, which is big, and another 'village' school which was very small.
I think if you have not yet been matched you do need to wait because the specific child will have specific needs and things in schools can change quite fast, a new head can be in place and changing things, one local school has had a succession of temporary and permanent heads over a period of just a couple of years.
So me and my husband visited the school we did not know.
We felt in an odd way that one school was saying all the right things but might not end up doing all the right things and by contrast the other school was majourly pissing me off, but might work out OK.
So we went with my gut (DH kind of left it to me, he is very hands on but with education and medical stuff he tends to go with my feelings).
We picked the bigger school, which we felt had better facilities, which we felt would not single ds out as being naughty etc or a difficult child (he actually is not very naughty at school, pretty emotional at home etc but good at school). This was the school my dd was at and practically speaking, in terms of drop off and pick up, it was the logial choice, but it also worked out that it was the best choice for ds's needs.
In a very small school my son may have stood out if he did have behavioural problems etc, also the school seemed quite claustrophobic. As a mum in the area I had heard negative things about most of the schools, along with positive things too, but I also felt the negatives I had heard about the smaller school (bearing in mind they had far fewer pupils) kind of outweighed the negatives I knew about the school dd was already at.
I wholeheartedly agree that I would be suspicous of Ofsted excellent. I have very little time for Ofsted!
Go with your gut.