My eldest 3 went to 3 different secondary schools (and between the 4 of them also went to 3 different primaries) and were much happier because of it. None of them got compared to their brother/ sister and all had separate friends. We had huge upheavals when DS3 then had to go to the same school as DS2.I never agreed with sending them to the same school for convenience when they all had different needs. (although the school run was a nightmare for several years)