first its not where you go to school, but what you learn from school and how much of it can you apply in real life and how much can you invent.
Pepperdine's gracidia's (sp?) school of business is highly rated. So is UCLA school of business (or was it law?).
As for getting into schools, you got to apply ahead of time, have the GPA requirement and be good in all. What JC are you going to,whatever it is, try if you can get into the honor roll program (scholars or whatever its called) meaning you will get an advanced priority admission to the UC's and CSU's.
I suggest going to a good JC.. might I suggest my old school, Glendale Community College. Pasadena City College & Santa Monica College is good too. You want to go to a good JC not some place like LAValley, or East LA CC or LACC .. LACC isnt bad, but I think Glendale is better.