I think AFT are a bit less flighty, but I've only handled leos, not owned any. There's TONS more morphs of leos, but AFT are newer to the pet industry and the morphs are mostly brand new(with a couple exceptions).

I like my AFT a lot. They've been very mellow, very easy to keep, although mine seem to only like crickets, not the mealworms or any of the worms actually.