how about St.Paul's School(Lam Tin) or St.Catherine School for girls?
I think some secondary school in lam tin are good ,the students from the school are very nice and kind ,also clever~if you think all school in Kwun Tong are bad ,you can applicate some famous School like:Maryknoll,St.Mary,St.Paul Convent but maybe you don't have much money to get your daughter into these school,if your daughter's grade is belong to Band2 that means no chance to get into famous schools