Hi, thank you for asking your question! There are a few factors to consider when "ranking" your extracurriculars relative to everyone else's -- especially for selective schools. For one, you want to make sure your extracurricular is aligned with your major of interest. Secondly, you want to have a unique activity that not many high schoolers are doing that have gained recognition and awards. And third, you want to be able to show that you have dedicated significant time to the activity (hrs/wk, wk/yr).
More specifically, extracurriculars can fall into tiers based off of their impressiveness. I would check out this blog post here for more details about this, and to size up where your extracurriculars stand.
That being said, my recommendation is to write about the second activity, given that it aligns more with your major of interest. Even though the first activity ties into your overall application theme, you need to include more political science related activities to show that you are passionate about this. Additionally, if you are leaving the community service kits activity for the 10th activity spot, then it may not be that high of a priority, compared to the preceding 9 activities.
I think you put the first one, as you said it fits the most with your theme. It's also the strongest amongst all the other extracurriculars as it gives you an extra spike in your desired major.
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