Journalism School?

I really want to be a journalist. Right now I'm a senior and so far I've been accepted in CSU Long Beach, San Francisco State, and San Jose State; the UCs and other CSU admissions come out in March but I'm trying not to hold out too much for a really good school. My question is out of these schools which has the best undergrad journalism school and if I got close to a 4.0 if not a 4.0 for all my 4 years, would I be able to get in Columbia's grad journalism school? And what other tips would you have? THANK YOU!