... but after that the others have mundane, out of date websites
I'd strongly recommend not judging schools by their websites, nor for that matter, brochures or other marketing materials.
Come and look round the schools. Each one has its own distinct character.
When we first started looking at secondary sector schools in Y5 for my elder daughter, we did an extensive tour of the ones that were within reasonable commuting distance of our house - initially without DD. The two furthest were good (comprehensive) schools, but the distance & cost of travel outweighed any possible benefit of DD going to them.
We then toured the two closest comps & the girls grammar (even closer to us) in Y6 with DD. One of the comps we ruled out as it would just not suit her (that was both her opinion and ours - we'd more or less decided that the year before without telling her).
Both the grammar & the comp would suit her character & interests well, so we let the 11+ decide.
Did we look at the GCSE, A level, added value or OFSTED reports? No. Both schools have good reputations locally. The comp has a reputation for having a 'rougher' element, but that doesn't seem to affect the brighter children there.
If we were **** bent on pushing her to the extreme, then maybe we would have looked at the other grammars, and had her commuting 1 1/2 hours each way per day. We prefer her to be part of her community, to go to the school that her friends (some from nursery, others from primary school) go to, and one that suits her character. She loves it there and is doing pretty well.
We've just done the same with DD2, and, with her input, come to the same conclusions, even though they are different children. Only problem is for her, that a couple of her friends have decided to make the hike up to Pates. Oh well.
Had they been boys, then I suspect that we may have made different decisions.
one of the problems if you live in a selective area (and I am not from Gloucs) is that the comprehensives are anything but - they can find it difficult as the top band of children have gone elsewhere
I don't know the comps over there, but that may be the case in Gloucester or (to a lesser extent, due to only having one super-selective grammar) Cheltenham.
However, I know of quite a few children in the Stroud area who pass the 11+, then decide to go to one of the local comps, and the top streams at these schools do produce great results.
The further you get from Stroud to the S & E, the more comprehensive the comps become, so one comp I know has a 'grammar' stream, set & taught together from term 2 or 3 of Y7.