Something I note that hasn't been mentioned here is that your liver ALWAYS metabolises alcohol first when you consume it. This therefore causes all other nutrients that are being consumed at the same time to be stored for later use. That is, if your eating while drinking alcohol (which is very common) then all the energy from that food will be stored either as Glycogen (in muscles) or as fat. For most overweight people their glycogen (carbohydrate) stores are rarely depleted (due to lack of intense exercise) and therefore the body will store the energy from food as fat (mostly around the belly, behind and legs). As you can see there's much more than just the energy (caloric) issue involved when choosing to drink to alcohol. You must consider the metabolic effect as well.
My advise is to stop drinking alcohol completely if you're genuinely trying to lose weight! I stopped drinking a few years ago to lose weight, and then never started again. Basically I found once you get the urge (addiction) to drink out (even it's just 1 or 2 a day) of your system you will find you never miss it. Our bodies consider all alcohol to be a toxin, that is why it is metabolised first.
Hope this helps. Bye