Personally, i do not have preference on 陸慶濤. But i highly recommend its related Secondary School 羅氏. I have taught some of the students from 陸慶濤 & 播道 before, but i have no 真道 students. Just comparing those two, 陸慶濤 is more tradition like normal school. 播道 likes some international school. The teachers will not scold students even they did something not properly. They will encourage them to be good. Better in English as they use non-HK English text book and teach Science in English.
P.S. I like the school uniform of 播道 but i dislike the color of 陸慶濤 uniform