DW water parks

[Florida113]

I am planning my trip for next June. Will be here b4 I know it. I want to go to a Disney water park. I hear the best reviews for TL which looks really nice. But am I missing out if I don't go to BB? I love water rides but not sure what most think of BB. What is the best time of day to visit these parks 1, to avoid crowds 2, avoid worst of the scolding heat? How long on average do people stay in a water park? I have been to wet n wild which was ok but bit tacky and crowded.
Also what happened to DW 3rd water park?
Thanks