Why Thunderbird 2 wins on logistics

Which Thunderbird is the favorite?

Thunderbird 2, because it brings the equipment and logistics capacity that let the rescue team actually do the work.

Thunderbird 2 is selected because it delivers the equipment needed to carry out the rescue. Thunderbird 1 is caricatured as arriving first to coordinate and announce the team's presence. Thunderbird 3 handles the space missions. The distinction gives the equipment carrier a central role in completing work on the ground.