What type of links is most popular due to their design for use on hooks?

Pear-shaped links are highly favored in rigging applications primarily due to their unique design that allows them to efficiently connect to hooks. The pear shape provides a natural self-centering mechanism under load, which helps to distribute weight evenly and minimizes the risk of accidental disconnection. This feature is particularly useful when working with hooks, as it ensures that the link aligns properly with the hook's geometry, enhancing safety and effectiveness during lifting operations.

Additionally, pear-shaped links often have a larger cross-sectional area in the load-bearing section, thus increasing their strength and load capacity compared to other shapes. This combination of strength, stability, and compatibility with hooks makes pear-shaped links the preferred choice among riggers.

Other types of links might serve specific purposes, but they do not provide the same level of efficiency and safety when utilized with hooks, which can lead to the increased likelihood of failure or accidents during rigging tasks.