I have not been at Fish Safari, but I like Animal Jungle. I go there sometimes just to look around. I wish they had more planted displays. My kids like going there to look at the birds, rabbits & such. And you don't have to pay like the zoo.
i've always like fish safari more just because they are dedicated to just fish. but ever since i found out about animal jungle's "wet wednesdays" its just too good of a deal to pass up. but fish safari has a lot more in terms of plant supplements.