Single Quickest Way to Lose Weight: Increasing Exercise, or Avoiding Alcohol?
All else being equal, that is.
You do know what "all else equal" means, don't you?
You would lose the same amount of weight, in the short-term..
In the long term, the elimination of alcohol would likely have an overall higher impact on your health and appearance.
It's calories in vs. calories burnt. So, work it out.