Please Chance me for Cornell ED

Hi guys,
I am a rising senior and an international student from Mainland China…
I cannot speak excellent English as most of you but maybe it’ll not be hard to improve…
Anyway, chance me please!
Early Decision, College of Arts and Science at Cornell, Major in Mathematics

Info:
rising senior, an international school in China
Not permanent Resident of U.S.

Academics:
GPA: my school doesn’t calculate that, but I am straight A, several A+ every semester
Rank: around 20%
Toefl: 108/120

SAT I: 1480/1600 first time, goal–1520+(I do not know if it is necessary to take it for another time… But people are crazy like for getting a higher score…)
SAT II’s:
Physics: 800
Math II: 800

APs:
Calculus BC:5 (AB subscore: 5)
Macroeconomics: 5
Microeconomics: 5
Environmental Science: 5
Physics 1: 5
Statistics: 4

Courses: AP English Literature, AP Computer Science, AP Physics CM & CEM for next semester

Activities:
“Sanitation monitor” for 4 years (it sounds interesting that I got some awards of leadership for doing this)
Billiards JV/Varsity (7 years)
Basketball JV/Varsity (5 years)
Basketball Assistant Coach (5 months, part-time job)
Violin JV/Varsity (7 years)
School JA Economics Club (2 years)
Math and Physics tutoring (2 years)
Knowledge@Wharton High School (6 months)
A Design of an Artificial Satellite (6 months)
Summer College at Cornell, Genius and Madness in English Literature (Fortunately I got an A… I love music, poems, and movies, but never learned much about them before)
Plan to make a roof garden on my academic building, hopefully

(Not as long enough as most of you, probably my weakness… Wish you would not call me a nerd… <:-P )

Awards:
AMC top 5%
AIME 8/15
HMMT team **
Euclid 25%
Several provincial awards of Physics, business competition, and leadership

Other school on my list:
Duke
Wash U
University of Southern California
U.C. Berkeley
U.C. Los Angeles
Tufts
University of Michigan
Wake Forest
Brandeis
NYU
Brigham Young University
(any other recommendation?)

Please tell me where to improve and my chances for these schools as well!
Thank you! :-*