I would say not to go to the prep unless it really is that much better. Example: my friends that went to a Bay Area public school: 5 to Ivy's/Stanford, at least a dozen to good UC's. my friends from my prep school: 3 to Ivy, about 10 to UC but I don't know anyone that went to a shitty university. All in all our fortunes are about the same. Good athletes tended to go to better schools and kids with wealthy/well connected parents tended to go into $ industries. That all being said, I'm happy with what I've got and so are most of my friends