How about International Secondary school

Dear All,

My elder son is now in west island school and my second one is now in grade 6 in ESF. Can anyone share with me about the choices in international secondary school? I still have a choice for my second one to choose between island school and west island school. Which one is better? I choose WIS for my elder son as all his classmates go up in the same school.

May all mothers/fathers kindly advice.