If you teach at a college where you've had students come from different secondary schools who do different boards (or if you have taught/marked mutliple boards), do you find that any particular board is better preparation for A-level?
I realise that any difference is going to be vastly overshadowed by individual differences between pupils, and between the schools that have prepared them, but even so, do you get any sense of one being more useful than others? They generally cover the same content, but there are some subtle differences between presentation, format, style of questions etc.
In short, if you had a totally open choice of GCSE boards, eg. for a home schooled student, which would you choose? Much of the discussion online is about which is easier to pass, rather than which is more interesting, more well written/organised, or in any other way 'better' for the higher end.