To determine which hiker feels the least pull of gravity from Earth, we would need to consider their distances from the center of the Earth. Gravity decreases with distance; thus, the hiker who is the farthest from the center of the Earth would feel the least pull of gravity.
Assuming that all four hikers are at the same altitude on a flat surface and have equal mass, they would experience the same gravitational pull from the Earth. Therefore, if we do not have additional information about their respective locations (such as being at different altitudes), it's not possible to determine who feels the least pull.
If they are all at the same elevation on the same ground, they would all feel the same gravitational pull. If one hiker were on a mountain top, they would feel slightly less gravity than one at sea level. Without such specifics, we cannot determine which hiker feels the least pull of gravity based only on their names.