<p>A green card will bring you into the US applicant pool which is far less competative. A few colleges will also consider Canadians as citz, but a green card is very useful for admission and fin aid purposes.</p>
<p>Your IB won’t hurt you. If anything it is considered more competative than an average HS Diploma from a public in the US. The ‘Chilean’ experience will make you a more interesting applicant.</p>
<p>So: If money is an issue or you want to get into the US applicant pool for schools that dont consider canadians as residents (which I would advise u) move to the US. Otherwise your Chilean situation will probably be to your advantage.</p>
<p>The SAT can be taken all around the world. You can prepare for it yourself or probably find some prep classes at the nearest American or International highschool in Chile (most bigger cities have one of the two).</p>