keep in mind when you are looking at waiting lists, that you need to take into consideration the size of the school. glenealy is a very small, exclusive, lovely, school, and the catchment area is not transient. those 10 places are like gold dust!
bradbury is a fantastic school as well, with a much more transient catchment zone.
please do take that into consideration before looking at schools.
the teachers at the ESF school my kids are at are excellent. i know a few glenealy and bradbury teachers and they are also very highly regarded. i know some HKA teachers who are also wonderful.
i know mums of multiples who are very happy at glenealy.
both HKA and ESF have their good and negative points. personally, i would apply to both schools.
good luck in your decision.