Great thread idea! Lots of interesting discussion to be had.
As some of you know, I’m a large San Diego fan, and would definitely say it’s the #1 zoo I’ve visited. I thought an interesting way to explain why I love San Diego so much is to compare it to my #2 favourite zoo, which happens to be the Bronx. Oh and all of this is of course
my opinion.
Animal collection first, and its not a suprise that San Diego wins this, although it was a tad closer than I expected. Reptiles is an easy win, the Bronx is decent for Reptiles, but SDZ is on another level. Birds is much closer, as both zoos have vast collections, although San Diego sneaks by in this category. Ungulates is one I think Bronx wins, it’s one of the largest collections I’ve seen. Primates and Carnivores are easily taken by San Diego. To round it off, I’d say that Fish/Inverts and other mammals are quite even, although Bronx might sneak by on the latter category due to Armadillos.
What I’m about to say will no doubt be incredibly controversial, and I bet most of you will think I’m completely wrong, but I think San Diego beats the Bronx on exhibit quality (dodges incredulous zoochatter

). Let’s start from the top, in what I call “the stupendously brilliant exhibits”. SAN Diego has 4 of these, Kopke, Gharial River, and the two massive aviaries (3 of my top 5 exhibits, plus another that hovers around the top 5), while the Bronx has only the Seabird Aviary. Moving on we have the “awesome” exhibits, in which San Diego has the entire Lost Forest section not including the massive aviaries(only 40% of the largest zoo in North America!), Africa Rocks, Reptile Walk, Diving Duck Aviary in Northern Fronteir and the Asian Leopards. Bronx has JungleWorld, CGF, Wild Asia, African Plains, Himalayan Highlands, Madagascar, Eithiopian Highlands and Tiger Mountain. Next is the “okay to above average” section in which San Diego has the Sun Bear Forest, Reptile House, Panda area, Elephant odyssey, Insect House, rest of Northern Frontier, Outback and the Children’s Zoo. Bronx has the Mouse House, Reptile House, Aquatic Bird House, Bird House, Bear Grotto for Brown Bears and the Pheasant aviaries. Finally we have the “below par” area, in which San Diego has Urban Jungle and the Bear Grottoes, while Bronx has the birds of prey and the Children’s zoo. I’m not sure what the rest of you are taking, but I’m going San Diego. Let the backlash begin!
Bronx wins conservation, although San Diego isn’t bad at this and certainly breeds lots of animals (for example, they now have a baby Tapir).
San Diego handily takes visitor amenities. I’m not sure many people have said this, but San Diego has a truly excellent and massive gift shop. Add on the millions of friendly docents, wholly decent food (I’d recommend Alberts even if it wasn’t at a zoo), the incredible skyfari, and you have an excellent visitor experience. Bronx by comparison had a tiny gift sop, mediocre food, and no docents whatsoever.
I think it’s worth noting that San Diego really does have great weather, and this should be used as a reason for why San Diego is so great. For example, I visited SDZ in mid December, a time when it was snowing in my native country of Canada. The temperature was 22 degrees Celsius (71 for you Americans). 22 degrees! This weather has several advantages, such as giving animals who normally spend all year indoors fresh air, animals outside 365 days a year, and helping grow a truly terrific botanical collection.
So if we apply my thoughts to @ThylacineAlive’s categories, we get 6 San Diego wins, 3 Bronx wins, and 1 draw. Or 6-3-1. Add in weather and you’ve got 7-3-1. This seems right to me, although it’ll be interesting to see what others think.