As I replied to your cross-posting on another forum, purely from a people perspective Charlotte (a US Air hub) is more pleasant than the Miami airport. There are also Delta flights to BZE from Atlanta, which might be easier if you are flying Georgia. As to the dogs, I'm not sure it makes much difference. I sorta doubt a week in Georgia will acclimatize the dogs to Belize.

--Lan Sluder

Lan Sluder/Belize First
http://www.belizefirst.com