I think your best bet is to have a real good look around when you arrive, people will always prefer one suburb over another, do not let this put you off, decide for yourself when you get here.
Where do you think you will find your work as this really will help you decide on either north, south or central Gold Coast.
Coomera Waters is nice, but it is a bit out of the way. Also if you buy on there you have a fairly large body corp to pay each month! This is included if you rent there.
Coomera; which covers an area east of the M1, has 2 primary schools https://coomerariversss.eq.edu.au/Pages/default.aspx which is a newly opened school with all the mod-cons and http://coomerass.eq.edu.au/wcms/ There isn't a high school as yet, there's talk of building one within a couple of years. The closest state high is http://uppercoomerasc.eq.edu.au/ which is huge and caters from prep to year 12. This school doesn't have the best reputation! The area west of the M1 is known as Upper Coomera.
Here are links to more schools, both state and private:
http://www.saintstephenscollege.net.au/
http://www.cac.qld.edu.au/splash.htm
http://www.assisi.qld.edu.au/public/
http://coomeraspringsss.eq.edu.au/wcms/
http://highlandreservess.eq.edu.au/wcms/
Here are links to read about both Coomera and Upper Coomera and also a link where you can read about all of the other Gold Coast suburbs:
http://www.goldcoast.com.au/property/coomera.html
http://www.goldcoast.com.au/property/upper-coomera.html
http://www.goldcoast.com.au/property/gold-coast-suburb-guide.html
Edit to add info on Pacific Pines.
Pacific Pines has got bad press recently since a policeman was fatally shot during an armed robbery at the tavern. Before this it was known as a family friendly suburb, which it still is. The people who robbed the tavern weren't Pac Pines locals, the people who live in Pac Pines are normal families.
The area has one high school and 3 primary schools:
http://parklakess.eq.edu.au/wcms/
http://www.jubileeprimary.qld.edu.au/
http://pacificpinesss.eq.edu.au/wcms/
http://pacificpinesshs.eq.edu.au/wcms/