If I were a visitor, had limited time and had to choose, I would pick Busch Gardens over the zoo. I say that because BG has many of the same animals but of course then they have shows and rides. BG is in the process of remodeling their kids area which will open at the end of March and be Sesame Street themed, with lots of rides and they also have a water play area in there thats bigger than at the zoo. Another thing about the zoo is although they have kiddie rides you have to pay for them and some (the better ones) are $4 a ride. And BG is probably open later than the zoo. I love the zoo, don't get me wrong - but BG is much more fun and has so much more to do! And its very welll kept.