Well, I recently had my first unpleasant trip to the zoo. For the main thing, the construction for the new Artic exhibit area is loud and dusty, in the middle of everything, and causing way too many exhibits to be shut down. Make sure they're finished with that if you go. My family likes the tigers so we head straight to the tigers (the two types of tigers are in totally different areas). It wasn't on the zoo's day schedule but they closed the tiger areas for over an hour to cut the grass in there after the zoo had opened. Why couldn't they cut the grass before they had paying customers? They're also charging extra for the sting ray exhibit and the charge is per person. And it's not like SeaWorld where you can still see the animals, just not feed them if you don't pay: you aren't allowed in at all. There were other things that were just really disorganized. Like I said, I've been to the zoo many times over the years. We went in June and were very disappointed.
I went to Lion Safari last summer. It was a little difficult to get to (look up your own directions on mapquest!). You have to pay extra to ride thrugh the safari on their bus instead of in your car, by it's air conditioned and guided and the monekys wont' rip anything off your car! I found that things were on time and fairly well organized. Also, the animals were much more active than at the zoo. It is more kid-oriented than the zoo.