Would a persons weight affect your decision on who you pick to help you conquer obesity related issues such as unhealthy food and proper eating choices and habits. Would you pick a thin person, since they are evidently doing something proactive, hence they are thin. Or would your choice not matter?
also list why.

I think the choice wouldn’t be affected by the person´s weight. However I would demand everybody on the team to increase their levels of physical activity and make proper eating choices to prove that change is possible and set a real example.