I drink both, probably in excess. I'm somewhat addicted to coffee and have trouble getting by without at least 1 cup a day. Quality doesn't matter, obviously good coffee = better, but I still gorge on instant coffee and can't care less. When it comes to tea it's the same, I enjoy having some high-quality tea from time to time but other than that I just get myself some obscene amount of cheap instant black tea and drink it straight out of pot. Anyway, anything goes as long as it's not too sweet, sugar kills me, milk is fine.