To be one step ahead, arrive to the gate at 08:30am, they let you into the first part at 08:45am, anthem plays at 09:00am and you're off. If you like coasters, do the two thrill rides at the back of the park first (JTA and Kraken).
The Dolphin show is first, go see it, usually starts at 10:00am.
Clyde and Seamore next.
Then go eat an early lunch at 11am to beat the crowd. Voyagers is my favorite, it's located next to the sky tower. It's cafeteria style pasta, salads, wood oven pizza, deserts, and of coarse, beer. You slide your tray down the rails picking items behind the glass divider.
After that, all you have to do is arrive to each show 20 minutes early and you'll be in.
Continue heading clockwise to the Clydesdales, and the free beer sample at the Hositality house. The Shamu show will be next, then the polar bear exhibit. Don't do the simulator, do the walk thru instead. At 3pm, head over to the Key West area and feed the dolphins.