as far as a source of protein, yes it is. now when taking into account other nutrients other than amino acids, your correct than eggs or egg whites cant be superior overall, but within the context of amino acid content...its accurate to say egg whites are superior.
And then there is "bioavailability, protein efficiency ratio, and net protein utilization"-- all of the ratings give slight to great differences in values for the same foods, but eggs always rise to the top of the list. Eggs are indeed one of nature's best and most concentrated sources of protein.
On another note, (while we are carrying on a civilized debate) There is no reason for healthy people who are eating adequate calories form a variety of foods to be concerned with the protein-quality ratings of individual animal or vegetable proteins. People who are total freaking "Vegans" will require more protein than those who eat animal proteins, but here in the U.S of A, almost every-fking-one EXCEEDS his/her protein/calorie/carb/fat needs.
Carry on...
