I work in Enfield, m. I seriously doubt there are any ‘superior’ schools.
Ahem- Excuse me!
I went to one of the top state schools in the country- in Enfield. Funnily enough, it is awash with kids from Muswell Hill, Highgate, the better parts of Finchley.
St Ignatius is ok, as is Southgate. The others are effectively borstals.