I hate the Rose Bowl, it is a nightmare to try and get to, i'd steer clear.
It's EASY to get to - for Championship games. Plenty of parking (relative to the number of people there) and it's a decent but do-able walk from the train station.
It is completely different for the BIG games when the ONLY way to do it properly is to get the train and get on one of the shuttle buses. If you drive, park at my HOUSE and walk (5 mins) to the station and pick up the shuttle bus.