This in an interesting thread; some of you folks are pretty impressive. My main drinking buddy from my single years used to say "An alcoholic is someone you don't like who drinks more than you do." I like all of you so I guess you aren't alcoholics, but I'm a little concerned about the health of a few of you. Perhaps an occasional blood test for liver disease would be a good idea for those on the high end of consumption.
In recent times, I've been averaging in the neighborhood of 2 per day. I typically have 1 or 2 with dinner--occasionally none, occasionally 3. When I grill, I'm more likely to have a little more. When I pick up takeout from a place with decent beer on tap, I'll often have a pint there while I wait and then the usual amount at home. When I go out with the drinking buddies, once every few weeks, I'll have around half a gallon. When we go on vacations or I go to one of those math professor conferences, well--extra drinking is part of the experience, so I try to stay at walking distance from some good taps.
According to some large studies I've seen, there is apparently no significant chance of long term organ damage, in the average size person, until you get past 3 per day. Reports on this kind of thing without some agenda can be hard to find, but it seems that there's still not much risk until you go past about a 6 pack a day and some drink a lot more without ever getting cirrhosis.
There was a large, well-designed, yet simple study some years ago which correlated "death from all causes" with alcohol consumption. Death rates went down as drinking went up until somewhere between 3 and 4 drinks per day. It was somewhere around 5 or 6 per day when death rates were just as high as in teetotalers and beyond that level death rates increased.