Choosing a good white wine isn't helpful if you serve it poorly. Good wines can be undermined by being served poorly while mediocre wines can really shine if served correctly. The correct wine glass allows you to best experience those flavors and aromas.
Best Glass Sizes & Shapes for White Wines
White wines are best served in glasses that are 10 to 12 ounces. This is a smaller size than what is typically used for red wines, 12 to 16 ounces (though red wine glasses can be as large as 24 to 30 ounces). This is also larger than what you'd use for port, sherry, or whiskey.
Because white wines are made without the skins, glasses for white wines don't need bowls that are quite so broad nor do they need to narrow by as much at the rim. You don't want perfectly vertical sides to the glass, but you will do just fine with a glass that is simply a smaller version of what you use for red wines.
Because it can be an imposition to have very many good wine glasses, you can usually get away with just one sort of glass for both red and white wines. It doesn't need to be as large as a traditional red wine glass, but it's probably more important that it not be too small.