Seats are closer to the action. Outfield has an area where fans can watch for free. A restaurant serves food beneath the seats at homeplate. Pacific Bell Park has more bleachers like St. Louis wants. Plus more of the expensive club seats.
Escalators replace ramps.
Luxury boxes offer more amenities. One of the biggest differences in San Francisco and many other cities is that the Giants asked taxpayers four separate times to help build a new stadium. Everytime the voters said no way. Finally another group bought the team and built Pacific Bell Park. It is the first time since the 1960's that a Major League Baseball stadium has been built entirely with private money.