To get straight to the point, black coffee is my favorite. If we are talking brands, beans, machines to grind the beans, then its much more complicated. Starbucks although maybe overpriced has staple drinks that can be customized pretty well, and for at home I like Nespresso (pod system is simple and easy to use). If you're a real coffee afficiando then getting a machine that grinds up beans can make a difference especially if you get them imported from Ecuador or something, however for optimal convenience and taste (especially for black coffee sippers), I think the Nespresso pod-system is dank. 1-2$ per pod (much cheaper if you buy in bulk), super easy maintenance unlink coffee grinding mechanisms.
I don't personally enjoy sugar or carbonated caffeine beverages, although White Monsters would be my go-to.
