It’s difficult to say which specific type of alcohol would be considered the “healthier” choice since different people have different nutritional needs and preferences. It also depends heavily on how much you're drinking at a time, as well as your age and how active you are. That said, research has shown that people who only drink beer tend to have lower BMIs than those who only drink liquor or wine—though it's worth noting that those who drank liquor or wine tended to consume fewer total alcoholic drinks per week than those who only drank beer. That being said, there isn't necessarily anything inherently better about beer vs. liquor - your lifestyle habits and diet will play a bigger role in determining your health than what type of alcohol you're consuming.