@hello_840 Hi and thank you!
Honestly, I’m still trying to figure out why they admitted me 
Personally, I was one of those “well-rounded” applicants. I didn’t have a single part of my application that was extraordinary. But, if I had to choose, I would say that it was my SAT scores and my essays.
Scores matter a lot more than we like to think, so definitely focus a lot of time and effort on your standardized tests.
And I think my essays made me stand out because they were very creative and well written.
But honestly I have no way of knowing. And there is definitely no one way to craft a good application! Each individual has different strengths and weaknesses, and colleges know that. They are not looking for people that fit into specific molds.
Sorry if this wasn’t helpful! College admissions are a mystery for everyone Honestly just do your best! That’s all that I did, and it’s all they are asking of you!