Comberton VC has been consistently, reliably fab for years, if a bit empire-building. Their pastoral care is second to none, partly because of their expertise with children with extra needs (they have the region's Asperger's centre, for instance).
They have (or had) a very sensible sports policy for the non-sporty, and a practical if dismal uniform including an outdoor fleece that you are/were allowed to wear indoors (yay!).
It's very organised, so children don't tend to get lost in the system. It's also huge, some of the old bits are/were a bit tatty and the new 6th form block overheats in summer.
Sawston VC divides opinion! We know parents who have moved house to avoid its catchment and others who drive past more local schools to get to it. More hippyish than Linton, better drama (sorry guys, you know it's true...) and fantastic music. DS adored it. For him it's been warm, welcoming and personal - certainly doesn't try to cram oddball children into a mould. The (new-ish) head is making ominous noises about smartening up, though, and blazers have been mooted... On the other hand, he comes to every concert and every show and for all I know, every sports match, and writes personally to children to thank them for taking part.
Linton: more straight down the line, or was. Tends to big up its results in a sort of point-scoring fashion. Umm...