What are my chances of getting into Duke, Vanderbilt, or Dartmouth ED?

I just finished sophomore year, and this is what my stats look like so far:

APs: Taking 3 next year, 4 senior year(7 in total)
GPA: 4.2 weighted
ACT: 35
Currently rank 9th in a class of 92

ECs?

You’re on the right track. Continue to take the hardest courses available to you. Your ACT score looks fine. If 7 is not the most APs that are offered in your school, then the admissions people will notice.

But you need more than just good stats. You need a good way to summarize your life experience into a cogent story. Good luck