Both schools are difficult to get in. Can you please share how your girl can be accepted by both school? Can you pls tell me the name (in English, if possible) of the principal in 協恩?
Both are good school.
However 協恩幼稚園 cannot directly promote to their primary school. First, you need to calculate how many "marks" you have.
About 聖母無玷聖心幼稚園, I'm not sure can it promote primary school or not.