Grapes (and especially grape juice!) are probably not much better. They wouldn’t have the carcinogenic alcohol, but they have enormous amounts of sugar, which causes its own large set of health problems.
If you avoid other sugars in your diet, in particular added sugars like the ones you can find in pastries, syrups, etc., I'd say that by consuming a moderate amount of fruits every day you're safe.
Grape or grape juice contain also fibers, that regulate many effects of sugars.
But if you really want to play safe, at the cost of more energy-intensive processing to produce it, you can go for resveratrol supplements in capsules.
