... is easier than one, in my experience. With a bit of practice, not drinking isn't that tough. It just takes a bit of getting used to.
If you don't want to go completely dry, give yourself a limit on the number of nights out and stick to it, and a limit on what you get up to, so your recovery time isn't too excessive.
Build fun into your plan.
I do totally agree that zero is easier than one, and have been cutting out alcohol a lot recently.
Only yesterday, he didn't drink three bottles of bourbon!
I think the last three nights in a row agree with your pessimism colm.