It always looks better if you have leadership positions in schools or in the organizations you’re part of since it reflects how committed you are to the group. If you list several minor positions, it won’t stand up to a few positions where you hold a leadership role. Leadership roles show initiative and passion for what you do, and when it comes down to it, it’s what admissions officers look for.
I know that these are general pieces of advice, but this just proves that the perfect college application doesn’t exist. Just to strengthen my point, most of my classmates who went on to New York University, University of Pennsylvania and Vanderbilt University were part of Student Council, prominent leaders in their respective organizations, and really tried their best to hone their skills in the field they wanted to be in.
While I worked on my writing skills, and trying to get internships that dealt with art and art history (my intended major at 16), my friends were joining debate teams and student groups to bulk up their resumes. My cousin who got into Harvard founded a Medical Fund while she was in high school.
It’s these types of things that really get the admissions officer’s attention. As long as you’re aggressive in finding opportunities to shine, and make sure that you choose activities that you’re truly passionate in. It most definitely will work out for the best.