Out of these colleges, which should I apply to if I want to study Psychology?

Lord of the Dogs is right. There is no career path for a BA in psychology so it really does not matter where you go for undergrad. If you are going to pursue a career in psychology it does matter where you go to grad school. Save your money for grad school and go to the cheapest undergrad which would be a state. Apply to another state for your 5th school. Cal Poly SLO is very difficult to get into maybe you should also apply to Cal Poly Pomona.