The typical south and central Florida flight schools are "puppy mills." There are no doubt some good ones, but I can't offer a name because I live in NE Florida.
We have two flight schools at my local airport. I am not affiliated with them but they have a good reputation here.
Florida Aviation Career Training, Inc. - I have met the owner and spent some time chatting with him. He has an excellent reputation here. He is originally from Norway.
Aviation|Flight Training|Fliegen lernen Flugschule USA: Florida Flyers - I stopped in once to donate some aviation magazines for their students. The nice lady gave me one of their coffee cups. They are the busier of the two schools and have more airplanes, but personally I would prefer a smaller, less busy school. I have never heard anything negative about them.
Feel free to PM me.