I recall that at the time my son was applying for college one admissions director referred to their looking for “well lopsided” applicants. These would be students who had particular strengths rather than being a jack-of-all-trades.
But I think it’s important to look distinguished or distinctive in SOMETHING (or more than one thing) that sets the applicant apart from the crowd. That could be shown by awards or “wins” in some particular curricular or extracurricular area. There is no need to show excellence in everything.