Which GCSE/KS4 curriculum would you think offered the best choices/flexibility/breadth?

Agree. As far as i could work out my DDs school changed how they did options every year.

I agree I'd choose C as more free options/less compulsory.

OP may be overthinking though- this may all have changed by the time her DC picks options.

I like the sound of school B offering the choice between triple science, languages and humanities. That’s unusual but also allows for flexibility in whether they want to do sciences or not. Most schools push triple science at the deferment of languages so this sounds good. In some cases those interested in languages can’t do a second but those interested in science can always do a third. That’s why this approach is quite fresh in my opinion. Although, as others have said, looks like they are a bit rigid and inflexible in making all children do the EBacc - it doesn’t suite everyone.

I like school C because it offers 2 free choices. Would question whether this is the case or whether higher ability are ‘encouraged’ to do EBacc which means only one choice? Also not a fan of schools choosing who does triple science as it means those who like science can sometimes not access it because those who are more academics but maybe hate science who get the places.

School A, see some previously made comments about science and EBacc. But they seem very rigid and inflexible in their approach.

I’d choose B or C as first depending on whether I wanted them to definitely have the EBacc subjects and/or able to have a choice in whether they pursue sciences, languages or humanities (school B), or, whether I thought they needed a bit more flexibility to do maybe technical or creative subjects (school C).

With A and B the schools are preventing kids from choosing say PE & Drama as options.
I think if they are grammar schools then the restriction is fine (after all parents have chosen an academic focused school) but a comp should enable a range for those kids for who it benefits.

Agree with Teen; I don’t personally think it’s a good idea to insist that every student takes MFL. And I speak as an MFL teacher. I would rather teach students who chose my subject than those forced to do it.
otoh a humanity OR a language as compulsory seems like a good balance.

(Because the others force a language and a humanity (which is possibly just History or Geography) which is fine for academic kids, not so good for dyslexics).

C.