SWCK - ESF Kindergarten (Sheung Wan)

hi, my situation's....my daughter's studying in small world christian kindergarten K2 and we love the school so much, i thought she will finish the K3 here and then join the ESF primary school next year.....but today i received an offer from ESF Kindergarten (Sheung Wan).....so now still thinking about what to do...my concern's:

1. as the ESF primary is my target (we r living in HK side), is that ESF Sheung Wan really have a higher priority than SWCK as i know the competition on the seat in ESF primary in HK side's much less than kln or NT....so some said as we r living in Hk side, so my daughter can get the seat very easy even she is not from ESF kindergarten......is that really true? can any SWCK graduated kids' parents can help me on the question?

2. as SWCK really a lovely school and we love it so much, so i really dont wanna give up, is that ESF kindergarten really got 100% offer on the ESF primary?