This was a difficult poll, but I equated "favorite" with "enjoyment" & voted for alcohol, since I do really enjoy wine & good beer.
However, on a day-to-day basis, I drink different things at different times.
I always start the day with a cup or 2 of coffee, & that is the only time I really ever drink coffee unless I'm at a restaurant & having dessert.
After that, I ALWAYS have a bottle of Aquafina water in the freezer so I can take it out to the garden or the barn with me & it will stay nice & cold as it melts. I also put a frozen bottle of it on my nightstand every night.
Afternoons I usually have a cup of tea - regular or herbal depending on my mood. In the summer I switch that over to iced tea. Also like lemonade & Spicy V-8 juice.
I do also enjoy Diet Coke & ginger ale soda-wise, as well as the occasional Bacardi rum & Diet Coke (you do know that the zero calories in the Diet Coke cancel out all the calories in the rum, don't you? LOL!!), Tanqueray Gin & Tonic, or Margherita(sp?).
So all in all I guess I drink more water during the day than anything else, but would still have to say my wine or cocktail at the end of the day would be my "favorite" as far as enjoyment goes.