@ziming
All six of the Ivy League colleges that offer the Master of Architecture degree are highly selective. Harvard and Cornell have the largest programs; the others – Penn, Yale, Columbia and Princeton – are equally prestigious, but relatively small resulting in fewer open spaces.
None of them, as far as I know, publishes admission statistics, so we don’t know how many applications they get, how many they accept and of those accepted how many choose to attend. It’s generally understood that their acceptance rate across the board is in the single digits.
Being an international applicant is not a negative. Not requesting financial aid is not a positive.
The objective of the admissions committee is to put together a diverse class: in race, in gender, in economic strata, in age, in educational background, in life experience and work experience.
Although the greatest portion of the class will hold a four year undergraduate degree in architecture or architectural studies, many have degrees in unrelated disciplines and many have already pursued careers in other fields.
In order of priority, admissions weigh the portfolio, undergraduate academic accomplishment, personal statement/essays and recommendations. Life and work experience, as mentioned, can be very influential. The GRE is not a factor.
I’m not sure how your 3 year degree will be viewed. You might research how successful earlier graduates from your university have been in applications to American MArch programs.
Most importantly, I wouldn’t fixate on the Ivy League (or MIT). These are longshots for everyone. Some other excellent MArch programs with much higher acceptance rates that you could research are UofVirginia, UofMichigan, Washington University in Saint Louis, Northeastern. That’s just to start; there are several others in the same class . All of these place graduates at top firms all over the world.
If you’re unable to visit the schools in person, then you should be sure to join their admissions information webinars, which they usually hold in September-November. Don’t be afraid to reach out to the professors and deans listed on the department websites. They want to answer your questions. (You might also take a look at the forums on Archinect.com)
With regard to your portfolio, I wouldn’t overthink it. Choose your best work, work that reflects your talent and creativity. In your statement and essays, focus on your life experience and how your outlook could contribute to studio discussions.