Which taste typically has a pleasing or complex flavor profile?

Salty flavors are indeed often associated with a pleasing or complex flavor profile. This taste plays a crucial role in enhancing the overall flavor of foods, making them more palatable and enjoyable. Salt can elevate various other tastes, such as sweet, sour, and even bitter, by balancing them and creating a more harmonious dish. It also acts as a flavor enhancer, bringing out the inherent qualities of the ingredients used in a dish.

Sour, while it can contribute to complexity, is often considered more biting and sharp, which may not appeal to everyone as a primary flavor. Spicy adds heat and can certainly create excitement in flavor, but it may not inherently have a complex profile without the balance of other tastes. Bitter is often less desired in certain contexts due to its sharpness, and while it can contribute to complexity, it typically requires careful balancing with other flavors to be considered pleasing. In contrast, the salty taste has a natural affinity for appealing flavor combinations, making it particularly enjoyable in a wide array of dishes.