What's a good wine for a wedding gift? IDK if they like dry or sweet, white or red...?

Champagne.

When unsure what sort of wine people like and a gift, I usually go with sparkling wine. Real Champagne is always appreciated, but under $25 consider some good sparklers from California like Chandon.

Pinot Noirs are generally smooth not too heavy, not too lite red wines and they are easy to drink. For $25 you can get a great bottle of pinot noir...try Tori Moore Pinot Noir.

get them a bottle of red from this year (the year of their marriage). it will be cheap being such a late vintage, so you should be able to afford a good brand in your price range.

RED. It keeps better. The idea of the gift being they hang on to it for a few years and drink it on one of their aniversaries.

Ask for advice from your local/good bottle shop. NOT BWS or liquorland, too generic and boring range.

chose a red wine from korbel. korbel wines are VERY good and to me red wines sound like a better wedding gift

I'd get them champagne instead ... perfect for a wedding night and/or their honeymoon :)

chateauneuf du pape is a lovely red, cloudy bay is a great white!