NYU versus NU versus Cal Poly

I was accepted to the NYU Pyrotechnic School of engineering, the Northeastern’s College of Sciences, and Cal Poly College of math and sciences

Financial Aid: I received 13,000 from NYU , 2,000 from Northeastern, and 1,000 from Cal Poly I live in California so it would be really cheap anyways.

Waitlisted: Boston College and Oberlin

Which college should I commit to? also what can I do to raise my chances of getting in off the waitlist?