As if there is any notable difference.
Ogaden
Isaaq
Dhulbahante
In that order. They produce the finest Somali girls.
That's why i hate these type of questions. Maybe OP is not serious but i know some people say things like Somali's from x country are the best looking. Sure you probably seen a couple more attractive people from that country compared to other countries, but regression towards the mean usually takes care of that and evens everything out.
Yeah, but at the same time---these countries are not equal.
A Somali girl in Canada will have access to medicine, good diet, clean environment, and other things which her cousin in Somalia has zero access too. Why else are Somali-Canadian women so much more hotter than the girls who live in Somalia? I think Somali girls in North America are the best looking because of their better environment and much-higher standard of living.