Which of these children would benefit most from an independent education?

[earlycomputers]

I am due to fund one out of these three children to go to a good independent school throughout their secondary education. Which, out of these three, would get the most benefit if they went? I appreciate they could all benefit to some degree, but, who, in your opinion, would get the most out of it - just based solely on this info: Child A: bright academic high-flyer, ambitious to attend a top university, consistently top in most subjects; Child B: conscientious student who gives a lot of effort but is of average ability in most subjects; Child C: average ability, fairly modest ambitions for the future, very practical/physical learner (as opposed to book learner), has always disliked school lessons in general and is generally demotivated by academic stuff (Child C has had experience of both independent and state education).
Thanks in advance

Would you consider boarding, OP? There is an outdoorsy sort of school in Gloucester, a relatively new independent, that has a day a week in the Forest of Dean, I think. Might suit child C very well?
www.gloucestershireinternationalschool.co.uk/curriculum

Personally, I'd probably support child B on the grounds that it would probably make the biggest difference to them (Child A will do well wherever, and Child C needs a different type of environment to thrive).

DS1 is A, DD2 is B and DD3 is C, and we sent DS1 to private academic secondary but DD2 is in a fantastic comp co-Ed state and hopefully DD3 will also get a place in the state school. DD2 and DD3 would have had to go to a non selective private, I don't see the point of those personally, unless your state choice is dire.