Replace Florida Heat Pump AC with reg AC? Rheem or Goodman?
Best heat pump on the market IMO is a Trane, followed by higher end Carriers.
I personally wouldn't install a Goodman hp (had too much trouble with them) but others may have different experiences. In FL, you won't have much need for heating of course, but still - when you need it, you want it to work.
I've had too many leak issues with Rheem/Ruud to recommend them. They work well enough, but we installed quite a few of them a few years back, and saw an inordinate amount of leaks in both evap and condenser coils.
This is just my own personal opinion, of course, and others will have different experiences.