I wish to know whether to choose either coffee or tea as a fequent beverage. There are different kinds of coffee, and different kinds of tea. And the effect of amount and effect may differ as well, maybe for 1 cup a day coffee is better but for 5 cups a day tea is. And that maybe reversed if it is black tea against green tea compared to filter coffee. Even if there is no definite answer some discussion with some concrete points and facts to consider are useful to have in mind.
Maybe switching occasionally is best as well.