Ok, I'm just a city girl, but one cow pretty much looks like another. Some are black, some are black & white, some are red, and some are sorta brown. Altho, ifn I was agonna pick one, I'd hafta say for pur pretty, that there Red Angus is tops.
Guernsey
Data from herds enrolled in the American Guernsey Association's Dairy Herd Improvement Register program during 1992 shows the breed average to be 14,667 pounds of milk, 659 pounds of butterfat and 510 pounds of protein on a mature-equivalent basis.
Holstein
Average production for all Holsteins enrolled in official U.S. production-testing programs in 1987 was 17,408 pounds of milk, 632 pounds of butterfat and 550 pounds of protein per year.
Black Angus
Red Angus
Angus -Red or Black
Early in the development of the Aberdeen Angus, Hugh Watson of Keillor, Scotland arbitrarily decided that black was the proper color for the breed, and thereby started a fashion. He might well have chosen red instead. Leon J. Cole and Sara V. H. Jones of the University of Wisconsin Agricultural Experiment Station published a pamphlet in 1920 on "The Occurrence of Red Calves in Black Breeds of Cattle" which contained this pertinent paragraph:
"One more point should be emphasized, namely that the red individuals appearing in such stock (Aberdeen Angus)...are just as truly 'purebred' as their black relatives, and there is no reason why, in all respects save color, they should not be fully as valuable. The fact that they are discarded while the blacks are retained is simply due to the turn of fortune that black rather than red became established fashion for the Aberdeen Angus breed. Had red been the chosen color, there would never have been any trouble with the appearance of blacks as off-color individuals, since red-to-red breeds true."

:lct: