應唔應該插班?

mow-mow

There aren't any really top co-educational government schools.
Out of the 3 you mentioned, Hennesey Road is probably the best for both boys & girls.
Boys have chances of going to King's or Queen's while girls have chances for going to BPS or Ying Wah.
But the secondary school placings are hardly guaranteed.
If you can afford both kids at private schools, why not try to get your daughter to 插班 to St Paul Co-ed.
I know it is not a sure win situation for your son, but his chance of getting in would be greatly enhanced.
But at least this way, you wouldn't have jeopadised your daughter's chance of a good secondary school.