2. Jacksonville is superb
3. Disney has a good African area but not with great species variety. I'm pretty sure Valencia or Dvur Kralove have got to take theis one given they are literally based on Africa uniquely. Bronx is mentioned I'm assuming because of CGF, but the rest of the African exhibits aren't very impressive I believe. Cincinnati would be a contender were Valencia not to exist

4. Don't think the National zoo can really compete with some of the European zoos' representations. For example Rotterdam, Beauval, Magdeburg, Leipzig and Chester all have very good Asian areas, especially the first 3. Leipzig has Chinese pangolins so that automatically took it into the top 5

7. Agreed that Detroit is probably the best