I think all of us drink something, or a combination of somethings, that we thoroughly enjoy, but have friends that honestly can't imagine why. The drink(s) in question can be alcohol or non-alcohol based.
For me, it's straight vodka, or vodka on the rocks. I'm the only person I know who really does enjoy it; everyone else thinks it is repulsive and disgusting. Some say that I only do it to appear cool (never understood that one). I also enjoy scotch-whiskey, which is more accepted, but still disliked by many.