In my college days, I tried alcohol a few times out of curiosity in social gatherings. My most wild alcohol-related memory from that time is when I drank absinthe. I don't regret it, because I'd rather have the experience than the curiosity, but I remember I ended up like crap with just one shot.
Once my curiosity was over, however, I didn't have any reason to drink anymore. I've drunk some alcohol with friends in very rare occasions after that, but not because I genuinely wanted to. Still, if there's some wine around, I can have a finger of it during a meal and like it. And I don't mind to drink a beer if I'm meeting someone new, but... well, that doesn't happen too frequently. And I'd rather take a coffee anyway.
About my favourite alcohol beverage, does non-alcoholic beer count? =P Apart from that, there's actually a well-known cocktail that I don't dislike, but I never remember the name.
I'm mostly a lurker now.
