refer to your messages, it is very clearly to show that everything from 培正 is better than 德望. you have the answer already.
"不過,有一重要因素,就是最近報章頭條的5P事件,陰謀論朋友個個都說給女兒讀女校最安全,各位意見又如何呢?" - what comment do you want? you have the answer "重要因素 is from 陰謀論朋友" in your question already. don't play la! also, i don't think it is only the reason for the people choose 德望 instead of 培正.
"囡囡其實唔鍾意德望" - it is the most important that 你囡囡其實唔鍾意德望, 勉強冇幸福, as manmum said, "依據妳之回應,德望不太適合妳考慮之列,作罷算了"
i think no further comparison for both schools is necessary.