My best initial advice would be to start looking at safety and match schools where your stats fall at the 50-75% mark. Your list should take into consideration 1) finances 2) potential major 3) location 4) size. Start with schools you think you have a great chance of getting into, pick 3 then find schools where you think you have a good chance of getting in, pick 5. At that point, you can look at schools like Georgetown, Brown and Pomona which are most likely reach schools for you. Save those reach/lottery schools for last.