The challenge motivation for hunting is LEAST important to most hunters in the US.
While individual preferences may vary, in the context of hunting in the US, the least important motivation for many hunters is often the challenge.
While some hunters may appreciate the challenge of the hunt, it is generally not the primary motivation for a significant number of hunters.
The other options, such as obtaining a trophy, acquiring meat, and enjoying camaraderie, tend to be more consistently significant motivations for hunters in the United States.