We've all been there: You get to the front of the coffee line, and you still haven't settled on what milk you should put in your latte. Soy? Almond? Skim?We're here to help, at least on the nutrition end.We evaluated some of the most commonly used dairy milk and milk substitutes and stacked them up based on how much protein, vitamins, and minerals they contain relative to their fat, sugar, and calorie content. (Unless a brand is otherwise specified, we used the nutritional content provided by the US Department of Agriculture.)Find out how your favorite dairy or nondairy beverage stacks up: