DS1 has just finished his A levels, and is going through the universithy application process for the 2nd time (he did better than expected, so is re-applying).
Most seem to do three A2s, but start with 4 AS levels, and then drop one - as has already been said on this thread. However, the more intellectually able at DS's college did 4 A2s. This obviously means they have a full timetable and a lot of revision to do, so you have to be sure your child is up to it - doing a 4th could potentially detract from the other 3.
But there is an advantage to doing 4 A2s if the university you apply to makes their offer in points - as you have an automatic chance of gaining more points. A2s command more points than ASs.
Critical thinking/General Studies - IME of the universities DS has been looking at - are rarely considered/included in the points offer.
Nor, sadly, is the Extended Project. Although this is supposed to count as an AS level, and commands the same number of points, some universities will also not accept this (a shame for DS as he got an A*/70 points for his!).
Other things to beware of/look out for:
- some universities (Exeter is one) specify that they as well as specific A2 grades - usually AAA/AAB - they expect GCSEs to be excellent - meaning As and A*s
- some also dictate what AS results they expect - York says that every completed AS level (by which I assume they mean ones that are dropped in Yr12), must be at level B or above
- some also dictate what grades must have been achieved in Maths/English GCSE. DS is going to philosophy & history, but for some universities has to get a B in Maths GCSE.
Writing a good personal statement will also be important - if you Google 'personal statement' you will find various sites that give you examples on how to do this. There are also a load of books about the PS too (although personally I think you don't need to spend your money on these - there's enough help online/from the UCAS site and, hopefully, from your school).
It's a minefield, but hopefully some of this is helpful!