I actually read a study where people who consume a glass of wine per day were more successful in losing weight than those who had none. It did say however those who had more than two didn't fair as well. Here is an a little something on alcohol and weight loss from www.menshealth.com
In moderation, alcohol appears to improve levels of good cholesterol and has a relaxing, stress-reducing effect. Wine and hard liquor don't contain carbohydrates, and "light" beers only have a couple of grams of carbs per 12-ounce serving.
The downside is that excessive amounts of alcohol prevent your body from burning fat for energy. This effect is exacerbated when combined with carbohydrates, such as those found in regular beer or in mixers.
You can toe the line by sticking with one or two drinks -- at most -- per day. In fact, you'll find a glass of wine makes the perfect complement to any meal.
Moral of the story...drink your wine in moderation and you'll be fine.