Triplespin "genuinely interested to hear in what aspects your son's prep is better than the London day schools such as Westmjnster Under and Colet Court?"
Interesting that you picked the two most academic Prep schools in London / the country! If you're talking pure academics / ability to hothouse a child into getting good exam results then no, I doubt (m)any boarding Preps could compete. But the Westminster / St Pauls level of academic rigour isn't even relevant to almost every child, given they only take from the top 1% (roughly). Hardly a fair comparison when the choice for most parents would be between [insert name of genuinely un selective London school I have yet to find, perhaps aside from OFSTED inadequate Hill House] / more likely the local state and a boarding Prep.
Also, I wonder why you rate elite academics so highly? 90whatever % of DC could not cope in the Westminster / St P environment academically. It does not fit their needs. Many can get on fine in boarding Preps with very good teaching that can prepare DC for both the best schools in the country and prepare the less able for some still very good schools.
Besides, there is so much more to becoming a rounded human being than getting A*..... DC at boarding Preps are generally under less pressure academically and have many acres of space to run around in at break building dens, sport every day (often including horse riding / polo / golf, sailing etc) more other extra curriculars (a Prep I know of has 70 per week to choose from!) trips out to places of interest / fun every weekend for the full boarders, house parties / cinema nights with friends every Saturday, learning to live alongside peers (anything from full boarding to one night a month for 'babysitting' if Flexi is offered). Some Preps even allow DC to bring their own horse or pet to the school. Many offer a whole term abroad in Year 7 (though to be fair, maybe W / St P offer similar?). Also, because most have Saturday school and often don't finish after school activities until 7pm the academics are more spread out and the days (IMHO) are more relaxed and fun.
To me, London day schools (I mean, the majority of pushy Preps aside from W/St P) remind me a lot more of 6th form 'crammers' where everything is about most information in shortest amount of time and teaching to the test, with lip service paid to other non examination related things. Everything is about the frenzy to get a Nursery place at 'the right' Prep, or agonising over the 4+, then tutoring for the 7+ at probably 4/5 different schools. Then a couple of years off before realising there are very few Senior places (esp for boys)... So tutoring again for 11+ or 13+ (And frankly, most of the Seniors aside from the very top flight are not that great either compared to those out of London.) To me, the London system is all about how hard DC can be pushed over academic hurdles and I find it harsh (even tutoring 6/5/4 year olds) to have that much pressure at such a young age.