But if you are looking for reasons to choose chocolate milk, here’s another one:

NYTimes reported Tuesday (11/9/09) on recent research on the effect of chocolate flavonoids on inflammation:
“Blood tests found that after participants drank chocolate [skim] milk twice a day for four weeks, they had significantly lower levels of several inflammatory biomarkers, though some markers of cellular inflammation remained unchanged.

Participants also had significantly higher levels of good HDL cholesterol after completing the chocolate milk regimen, according to the study, which appears in the November issue of The American Journal of Clinical Nutrition and is already online.”
Link: http://www.nytimes.com/2009/11/10/health/research/10nutr.html