This may be easy to determine. There are people who consume resveratrol daily, over an entire lifetime. Imagine a controlled study comparing the health profiles of long-term alcoholics who consume similar amounts per day:

Control group: Those whose drink of choice does not have resveratrol.

Experimental group: Those who drink almost exclusively red wine.

Both groups will have ill health due to the alcoholism, but the experimental factor, the consumption of red wine vs. other alcohols, should show a correlative difference, if one exists.