I prefer to use silver tequila in a fruity margarita because it's goes smoothly with fruit and reposado can be overpowering. Silver tequila is good for mixing into fruity cocktails, like some margaritas and Paloma. Reposado tequila is good in cocktails and taking straight shots because of the smooth and rich taste. (Save your Añejo and Extra Añejo for straight drinking, it is aged longer, more aromatic, and much better tasting!)