Actually, I have different times of the day that I love different beverages. First thing in the morning is coffee, of course. I grind my own beans, pour boiled water through the grinds (in a filter) into a mug and add some milk. I don't like sugar really, so I need no sweetener. I use a two cup mug, so really I have two cups of coffee then.
Later in the day, I love iced tea. Again, it is unsweet. I love it with fresh squeezed lemon though. Not the lemon in a bottle. It has to be the real thing. Also, I do not place the rind in my cup, just the juice. Oh, and it is black tea that I love the best. Pure, black, no other cuts in it.
The other thing I love is grapefruit juice. I love the pink juice, not yellow.
So, for me, it is a 3 way tie for my fav. beverage, depending upon the time of day.