Thanks for your PM to ask me for my comments. I think in your case it is actually rather simple. First, MS kindergarten is not one-dragon to its primary school. As I remember should ...
But 愛德 in net 40 is not a popular choice, when compard to 荔天, 協和, 瑪利諾神父, 聖紀文. Last year, the spaces of 愛德 are not fully ocuppied in first round and the schools I mentioned b4, however, don't have enough spaces for the first round.
So I am sure you won't satisfy to enter 愛德 and you will feel not secure in k3. You'd better choose a famous kg which can help you to fight a better a space in private school, so I think KV is better.