To be fair, both Stanton and Paxon are actually college prep magnet schools. They are not exclusively gifted schools and do not accept only students that have been members of a gifted program. The same goes for Johnson and Cookman. They are both the middle school "feeders" for the high schools, but people have also been admitted to the high schools without attending the feeder middle schools.
You are required to do talent auditions for both D.A. and LaVilla. LaVilla is the feeder to Douglas Anderson. Again, no gifted program participation is required to attend these schools.
They are all excellent academically, and both Stanton and Paxon are continually rated in the top of US schools by U.S. News (in 2008 #9 and #30, respectively).
Johnson, Stanton and Paxon are ADVANCED and gifted schools. They do not teach regular course work at these schools. The only difference I found in the advanced and gifted course work was that the gifted students are allowed to set their own pace.
BTW to stay in an advanced/gifted school you have to maintain a C average. There is no summer school, you just flunk out and have to go to another school next year. You also can't change to an easier school in the middle of the year. If your doing poorly at Stanton you just have to repeat the grade next year at your neighborhood school.
Here is a link for Duval county's magnet programs.
http://www.magnetprograms.com/