Professor Claus Riedel was the first glass designer to recognize that the bouquet, taste, balance, and finish of a wine can be affected by the shape of the glass. Below are some sample wine glasses with the corresponding wines from the Riedel glass company.
I for one have found that the differences are subtle. In fact, I find myself using a small Stolze Bordeaux-style white wine glass for my reds, especially if the wine is drinking well after the initial pop and pour. Unorthodox maybe, but sometimes a glass with a larger volume bowl can subject the wine to too much oxygen causing the flavor to fade out rather quickly. When pouring your wine, utilize the lower 1/3rd of the glass and not much more. This gives you the ability to swirl your wine comfortably and, along with the act of diving your proboscis deep into your glass, allows examination of the bouquet. It is your choice as to whether you use a stem or stemless glass (not shown above). Find a glass that works comfortably for you. Experiment with different shapes, sizes, and weight. For example, I often find myself using a lightweight, stemless red burgundy Reidel glass for my Cabernet and Bordeaux wines. Whether or not a wine glass can affect the performance of the wine can be subjective. I believe the right glass can enhance the overall experience, but don’t listen to me, you be the judge.