Driving is cheaper than all of those options when its more than one person, at least here in Florida. The more people involved in your travel, the cheaper driving starts to get.
Hehe, my wife is from there, for the first few years she lived in Orlando I would crack jokes about how bad it is down there, noticed she was getting offended so I pulled back, but the last three times we've gone down there she swears up and down Miami drivers are the worst. Of course Orlando has I-4 as well, which is, its own special place.