BEST PRESCHOOL hands down in Coconut creek is New Adventures Learning Center on Sample and Lyons road. I look at the Security of my children, the Teacher to student ration, how well the current students like their teachers, what the school offers, such as swimming lessons, karate lessons, gymnastics, etc. They have two playgrounds to keep the younger children away from the bigger kids (so the little ones dont get injured, etc). They have buses that can pick up your child for after school once they go to elementary, and have field trips too. Three of my children have gone there and they all loved it. Also - if your child exhibits advanced intellect, they will move your child up to the classroom that will be better suited for his learning level.
Also - based on experience - New Adventures knows what to do if your child has an extremely high fever - my son was at another preschool when we first moved here - he had a 105.9 temp and they didnt bother to call me - also the teacher kept saying he was behaving badly and she didnt know what was wrong with him. After that - I was extremely more strict on who watches my son. Check out their website if you want more info.
Hope this helps!