I would be at the gate early if possible, last year we were able to get into the park and ride Goliath twice before the park was actually scheduled to open. I agree I would head for Goliath first, then swing around to Superman. Then hit GASM if you like woodies, Ninja if you must, I would probably head towards Gotham City then and ride Mindbender, then Batman, then Georgia Scorcher, Georgia Cyclone, Acrophobia, Mine Train. If you are just wanting credits, you can then ride the Canyon Blaster then head for the Monster Plantation near there.
Don't Miss(in order IMO): Goliath, Mindbender, Georgia Scorcher, GASM, Superman, Acrophobia, Monster Plantation, Mine Train
Hope you enjoy your trip to SFOG, and I hope my tips help.