For us Aquatica is a more themed version of Wet'n Wild (i.e. slighly less concrete), it doesn't really compare to the either of the Disney water parks.
As the kids have grown older we only buy the Universal flex tickets and tend not to do much Disney - except we *always* have to have a day at Typhoon. Its the highlight of the holiday. And we really miss Blizzard.
Aquatica makes a nice break, the kids fun park is awesome, the headline dolphin slide overrated and not worth the queue. For the Disney parks and teenagers, Blizzard has the better rides but we found longer queues, Typhoon has more natural landscape and of course the monster waves.
The nice thing is all the water parks have their different vibes and which is best really depends on family age.
Cheers
T
Less than six weeks and counting...