My son has been accepted by the following schools for next year's K1

1) Lingnan (Stubbs Rd)
2) Precious Blood (Happy Valley)
3) Rosaryhill (Stubbs Rd)

Any comments on the above schools? We have plans to send him to Australia for his secondary education so our main focus now is to give him a strong Chinese (Putonghua) language foundation. Do these school fit the bill or Kiangsu Chekiang is still the best so far?