ok I'm a Florida guy, so yes i have been to literally every theme park in Florida...but i'm not going to list them from best to worst or the such, i'm just going to list them as the ones i first visited.
Busch Gardens (Tampa Bay):The first theme park i have ever been too, and i still frequently visit, i can tell you i have been there more than 200 times in my lifetime, i LOVE the place (even though the rides are getting kinda stale to me now...even the new one which is a floorless, dive coaster names Sheikra) but i still love it!...sadly, they never upgraded their DDR Extreme to either SN or SN2...or did they? have to check sometime next week >_<
Adventure Island (Water Park RIGHT next to BG):Can we include water parks too? yea that place is fun, and so far is the only water park i go to...it's a fun place during the summer.
Sea World (Orlando's water-themed park): It's pretty much a huge aquarium with alot of sea animals and fish...plus a roller coaster and water ride and other stuff...not really a FUN place, but it does have it's up's and downs >_>
Universal Studios (Orlando): BEST PARK I HAVE BEEN TO, it has changed since i got there for the first time, but it has gotten BETTER! The Mummy, MIB, the nicktoon ride thing, oh man...good times, plus the arcade =D
DisneyWorld (Magic Kingdom): i went when i was a kid and OMG, i loved it, i hated the Haunted Mansion (but now that i'm older, i laugh at throughout the ride), i loved the fireworks at the end of the day and stuff...and who can't forget SPACE MOUNTAIN!!! >_<
DisneyWorld (MGM Studios/Disney's Hollywood Studios): when i was a kid, it was boring, but as i grew older i started to like the place, the Rock'n Roller Coaster ft. Aerosmith, the Tower of Terror (FUN!!), Star Wars ride, uuummm and other ones...
Disney World (Epcot): i only went there once when i was young, i havent been back there since, but when i was a kid i liked some rides, but others made me cry (yes...others made me cry) and this was during an elementary school trip lol. But now i WANT to go back again to ride the Test Drive ride, Mission To Mars, and to see the fireworks display at night.
Six Flags Over Georgia (...in Georgia): i went there once when i was young, soo don't remember much of it because i wasn't tall enough to ride the big rides T__T, but i plan to go back there soon...and this time ride that one roller coaster where you stand up through the whole ride (it's crazy, i didn't know they had that one when i was a kid).
Islands Of Adventure (right next to Universal Studios in Orlando): this is by far, my top best theme park...Spiderman ride, The Hulk, Tower of DOOM, the rip falls, Popeye river raft thing, Jurassic Park(lol), Dueling Dragons, and yes, even the Suess Landing...really fun places to go and check out.
Now this one isn't a theme park, but it sure as hell felt like one =):
Disney Quest (interactive indoor theme park): it's basically a HUGE *** arcade inside a three story building, and for only 30 bucks, you can enter and get into almost any arcade game FOR FREE (and i also heard it got SN2...) plus other cool stuff like virtual reality games, create your own roller coaster ride, then RIDE IT( i created three and the rating was at the highest rating. woot), create your own toy, free wi-fi, cheesecake factory, and i think laser tag was on there, but i'm not really sure...
And that's about it, i plan to visit Animal Kingdom, Typhoon Lagoon, Blizzard Beach (and to ride the tallest vertical slide in the world...*shudder*), Aquatica (Seaworld's Water Park), and others that i might have forgotten...yep, this is what happens when you live in Florida, the nation's capital for theme parks =D