Last big decision for moving the family to London, a result of getting into two great schools for kids (6.5 and 5).
Want to live walking distance to school, so
A school near Sloane Square (Belgravia, Knigtsbridge, Chelsea, South Kenisngton): cosmopolitan, over the top in some ways, but awesome central location for work, tons of families from all over
Or
A school in Hampstead: leafier, greener, quieter, not cheaper but still very weather but older and understated, great village, though maybe a little less shops/restaurants at fingertips, great park access with Heath and Regents Park, and actually not much longer a commute (Liverpool st station)
I have a slight lean, based slightly on school visits, but quality of schools are both outstanding, so coin flip there