Personally, I love coffee. Tea is good too, but I'm more of a coffee person and my brother is more of a tea person xD
Coffee helps me mostly when I'm doing school work (homeschooled) because I tend to get anxiety when I do tests and quizzes, so coffee and music help me a lot c:
Tea...though I honestly used to be 100% a coffee person. Maybe I am just getting older? I can't really say for sure why it is...I just now prefer a nice hot tea...especially lavender tea with a bit of honey. I find it funny that I like that as I was totally a pitch black unsweetened coffee person. xD
I much prefer tea, the flavor is a million times better and I can drink it without adding a ton of crap, usually just a dash of honey or sugar, sometimes milk. But coffee I have to like add a million spoonfuls of sugar and creamer to even stomach it. It's not for me! I do however like blended coffee drink or mochas, but that's because it's got a ton of sugar and milk in it to start with, and I think espresso is just easier to drink for me.