Heirlooms
Flavor
Depth of flavor far greater and thats largely why they get passed from generation to generation. People who dislike tomatoes because of the store-bought flavor, will notice the robust flavor of an heirloom and even enjoy it.
Variety
Heirlooms vary in color, size, and texture. They are unusual looking, not perfect like the hybrids you see in store that are perfect in shape and color, these hybrids must comply to a certain standard. Heirlooms are known to have imperfections, but the flavor speaks for itself.
Yields
Heirlooms are not cross bred or hybridized for at least 40 years and open pollinated, meaning seeds will produce plants identical to the parent plant. Hybrids are cross bred for specific reasons, such as greater yields, pest resistant, and durability.