Congratulations to your DD! I’d think mainly about JAGS and Oakfield, as the unnecessary car journey will get boring very quickly. Although I have a feeling Sydenham is cheeper, in which case take that into account!
I don’t really know Sydenham, so just on JAGS and Alleynes Oakfield - I think they’d have a very similar school experience at either. Lots of families have kids at both at some point (across JAGS, Oakfield and Alleynes ‘proper’). So….
Coed or girls? A really personal choice, but think about the whole way through school as well as for tinies.
Who do you just straightforward like the most? JAGS has a new preprep head who might not have settled in yet, but you can get a vibe from the staff.
Set aside views on ‘hothouses’ because so much is in flux. JAGS has gone full on to address the concerns there (over a number of years, not a new thing), and certainly in the lower years seems very relaxed. Whereas Oakfield used to be quite stressy in higher years because of the need to do 11+… but now that’s taken away. Equally, Alleynes used to be all about results, but now they’ll have kids from Oakfield with is far less selective, so that might change as the my go into the senior school.
That’s probably not much help! But it’s what would be on my mind if I had your lovely dilemma.