The others are right - you need to see the schools for yourself and work out which is right for your kids. Different schools suit different children. The one obvious difference is that Thomas’s is co-ed all the way through whereas Broomwood becomes all girls in Year 3 (?) and the boys move to Northcote Lodge. Both schools go up to 13+. If you’re only interested in 11+ for London Day Schools you should also look ar Hornsby House which seems to get great results. Also worth looking at the schools’ Twitter feeds to see what they get up to on a daily basis.