Which are the best in which fields?
Your question is way too broad!
Here’s a few links to get your started.
First, for the public universities, you can use the following matrix for info on Freshman admissions, including the typical scores/grades required for admission.
http://pvscollegecounseling.com/wp-content/uploads/2014/07/SUS-Matrix-2015.pdf
Use US News to “rate” the schools. They also rank a few undergrad programs, like engineering and business. Otherwise you can use the graduate school ranking to get a rough “idea” of how good a school is in each major.
Use College Navigator for more detail info on each school. Including what majors are offered (and how many folks graduate with each major).
http://nces.ed.gov/collegenavigator/?s=FL
Good Luck!