Both of my kids (DD just finished Year 11 and DS starting Year 8) attend a very highly sought after (and extremely high ranking) comprehensive school. The area it is in is very posh, but they take kids from surrounding areas. Said village is on the outskirts of a big town and they take kids from rough estates in said town. The school's catchment area is huge, considering how good it is. Kids come from 10+ miles away. Apparently it's rare they turn a student down. There are around 2000+ in the main school and a few hundred in 6th form.
The school has around 400 in each year group and in my experience, they seem to pick the 25 top students from each year group and splurge all of the funding on them. I've noticed it in both DC's years and even in other years from what I see on the website the same kids always pop up. In DD's 5 years there she has been on 4 school trips. Residential in Year 7, Year 8, Year 9, Day trip in Year 10 and none in Year 11. All were UK based. DS seems to be following the same path.
However, one of DD's friends has been on several trips per year. In addition to DD's trips, she's been to Barcelona with school for a week, France for a week, on a German exchange, a visit to Jesus college in Oxford, and was also offered another trip to Aushwitz which she turned down. DD applied for 2 of these trips and was turned down for both. She says it's the same group of kids who always get the places on each trip. The Barcelona one was for the musical kids in particular to go on tour, fair enough. But the rest weren't linked to any subject except Aushwitz (History) and yet of the 20 places they only offered the trip to certain History students. All of which had already been abroad with the school.
The school has what they call the "Scholars Programme" where the top few kids in each year (ones who always go abroad and get picked to represent the school in stuff) get put in their own classes and get to take "special" GCSE's not offered to everybody else. They like to push these kids towards Oxbridge (hence the Jesus college trip) and they get a lot of time and money spent on them. In addition to the abroad trips they are constantly taking them to lectures and the like. These also tend to be the posh kids who live in the village. All of the other kids seem to fall by the wayside. DD took 7 GCSE's and is predicted between 6-8s but obviously nobody in the school takes an interest in the kids who aren't on the Scholars programme. I expect DS will suffer the same fate. On the school's page about the scholarship programme they literally say "We understand not everybody will see the benefits of the programme, often those not fortunate enough to qualify. But we believe our most abled students deserve just as much support as our others."
They sent a girl off to Oxford who they'd taught from Year 7 to Year 12 two years ago and they still bleat on about her online 3 years later. I feel it's all very unfair. I have a 21 year old DD who went to a different very average school and while that had it's faults, it didn't blatantly favour certain students. None of it sits well with me. It feels like some of the kids are getting all the benefits of a private education without actually paying at the expense of everybody else who gets neglected. DD says she'd rather eat a cactus than attend the 6th form.