I'd suggest to just do your own research as to the differences. These breeds are not as tightly standardized, or even standardized at all, as most of your typical show type chickens. You may be better off thinking of them in terms of "type", not breed, you will see a wide range of variation, a spectrum if you will, in some of these. As soon as anyone says a Ga Noi or an Asil is XYZ, somebody else will jump in and say ( probabaly correctly), that they are also ABC. All anyone can really provide are broad generalizations that will often have exceptions. Clear as mud, right? 
