Grooming
The American Foxhound needs more grooming, brushing a few times a week, where the English Foxhound needs a brush once a week.
Temperament
They differ most on intelligence (American Foxhound: easy-going, simple routines; English Foxhound: learns readily, likes games).
Alike
They are much the same size as adults, about 30 kg (65 lb) for the American Foxhound and 31 kg (67 lb) for the English Foxhound.
Alike
Both are rated the same on independence: decides for itself.