<p>On collegeboard, I looked through some of those west coast and east coast schools (like Duke, Berkeley and Upenn) and saw that over 95%+ of the people submitted SAT while the ACT was submitted by only about 20-30% of the people. </p>
<p>I had planned to just take the ACT but because of the high percentage of the people with SAT, do they vastly favor the SAT and should I take the SAT instead?</p>
<p>you have to take it all with a grain of salt. The areas that are mostly SAT areas are east and west coast, which are much more densely populated than the middle of the country, ACT-ers.</p>
<p>In addition, people from the coast apply at a higher percentage to coast schools</p>
<p>The colleges do not discriminate based on test submitted. The SAT is the test most students in the eastern states and west coast take and students from those areas generate the largest number of applicants for the eastern and west coast colleges respectively. Going to Harvard, Yale, or Princeton is veritably a compulsion for huge numbers of Eastern state students. You go to midwestern states that have the ACT and you will not find that many who even want to apply to HYP.</p>