Chances for UChicago, Columbia, Dartmouth, Princeton, UPenn?

<p>Hey, I'm a senior; Korean-citizen with permanent residency in Mexico.
I've been living here since I was 2, and am fluent in 3 languages: spanish, english, korean.</p>

<p>GPA: Weighted 4.24 (we don't have unweighted grades)
Rank: Within top 5-10%
SAT: 2170 combined (750 CR, 710 W, 710 M). Currently waiting for SAT II results.
TOEFL iBT: 118
I take 4 IB HL subjects; English A Lit, Spanish A Lang and Lit, Economics, Math. I take Chemistry and Environmental Systems and Societies in SL.
We're a British school, so I don't know the US equivalent but I've won "Achievement" and "High Achievement" awards every year in high school. I'm valedictorian candidate too.</p>

<p>ECs:
Basketball captain (all high school); member of volleyball, badminton, boxing, cross country clubs; principal violinist of orchestra; violin teacher in church; assistant teacher of Korean school; basketball coach for middle school team; journalist-editor of newspaper; President of student council (for the whole school); tutor in Chemistry and Economics; founder of the student senate; MUN delegate (won best delegate award); former leader of school rock band, doing vocals and guitar; have hundreds of community service hours at local libraries, schools, hospitals, activities with Special Olympics. Internship in LG Electronics and as lab assistant in biomedical research (cancer vaccination).</p>

<p>Rec letters should be great; counselor and both teachers love me, I believe.
My essays will be the best I can write, which I would judge as highly creative. Hopefully they're still unique when they're compared to thousands of other essays. More than scores and numbers, I'm a "people-person"; I have great people skills. First Asian student president in school's 61-year history, since the elections are half-popularity contests.</p>

<p>I'm not very confident about my stats (GPA and SAT) and I will be requesting financial aid, so what do you think would be my chances at each of these schools? I do know they're really "reach" schools, but want to see what everyone else thinks. What could I improve on? Thanks a lot.</p>