There are a lot of people who may have some debates about which one is better. It will ultimately depend on what you prefer. There are some people who cannot take the taste of coffee no matter how surprising this may be for some people so they would prefer to have tea.
There are also some who feel that tea is too bland so they would take coffee. The caffeine content of coffee is higher than tea but for those who are acidic, drinking coffee is not always recommended as they may begin to experience discomfort after. Take note that tea has a long list of benefits but so does coffee. Again, it will depend on which one you prefer.