Are you staying onsite?
If so, here's what I'd recommend:
Pick a day for the water rides. Get to the park at open. Head to Dragon Challenge. Ride it a few times (we usually do at least 2 each - more if there's no wait).
Then from there head to Harry Potter and ride Forbidden Journey - we always do single rider to save time.
After that, continue to make your way counter-clockwise, stopping at all the rides along the way. Jurasic Park, Dudley, Blutos..etc. Bluto's we tend to ride a number of times (16 last trip!). Skip Spider-man - it will be too cold! Ride Hulk if desired and head back to the hotel to dry off and change.
Then head back to the park. You can do that and be back in the park before 1pm.