Whichever I have in my house
Both are good, coffee is addicting and "help" me wake up late as I tend to drink it at night xD
Tea is relaxing, it feels good in my throat as I don't talk much (somehow xD)
Coffee is now my drink of choice, I cannot do my schoolwork without it. Once upon a time, I loved drinking tea that it's what I only drink the whole day. But coffee gives me the boost I need to function properly. However, I do end up getting the jitters once the caffeine effect wears off.