I love this topic. Just, so much yes.
Okay, I’m a fan of coffee and tea. I dislike most energy drinks as they tend to make me feel like I’ve been punched in the stomach for hours on end. (My sentence has an ambiguity! To resolve it: Interpret either way, and the result is the same.)
As far as teas go, this is my favorite

Been drinking those for ages. Occasionally in the loose leaf form:

It’s really quite good, and I prefer it to coffee most of the time. (Though I tend to get coffee for its wide availability and the inherent convenience which comes with that.)
There’s also this, which I drink almost religiously:

It’s disappointing that they got rid of their “Diet Green Tea” version, which had no sugar but still tasted great.
Now, as far as “real tea” goes, I tend to prefer green tea, but oolong tea is fine too. Black tea is fine as well, though I’m no connoisseur. I don’t pay much attention to brands beyond “That one wasn’t quite as good.”
Regarding coffee, I don’t have any particular brands I like. Most of the time I pick up a Starbucks canned mocha or something like that.