Which northern Rhône red wine is known for being the fullest bodied and ages well?

Red Hermitage is renowned for being the fullest-bodied among northern Rhône red wines, largely due to its production from Syrah grapes grown in the Hermitage appellation. The unique terroir, characterized by steep slopes and a variety of soils, contributes to the wine's complexity and richness. Hermitage wines typically display a deep color, pronounced tannins, and concentrated flavors of dark fruit, spices, and often a hint of smokiness or earthiness.

Additionally, these wines possess significant aging potential, allowing them to develop complex tertiary characteristics over time when stored under appropriate conditions. The balance of fruit, acidity, and tannin in Red Hermitage supports its longevity, making it a standout choice for lengthy cellaring.

In contrast, the other grapes and regions, while also producing quality wines, do not typically reach the same level of complexity, body, or aging capacity as Red Hermitage. For example, Crozes-Hermitage and Saint-Joseph provide excellent drinking experiences but generally yield wines that are lighter and less intense than those from Hermitage. Chateau Grillet, although a notable wine, is primarily white and does not fit the category of northern Rhône red.