Before making a choice, consider a few points like location and fees vs the EK contribution (that will not cover all the tuition). All schools have a big turnover of staff so one might be ahead in quotes one year and behind the year later. In general you can consider all International schools to be fair to good, a few excellent. Having a choice, I will not send my kids to a GEMS school because of their arrogance and they're in only for the mega profit.