I don't know about the tickets.
Crowds on any weekend are pretty big. I went on a weekday and there was a half hour wait for everything.
Must-do are The Cliff, Banzai, Aztec Adventure, and the Volcanic Panic.
Food has average pricing, a little bit cheaper than Kings Island. Didn't get a locker, I don't know.
The park is great. Clean, shaded, and has awesome water temperatures!
Have a nice trip!
-Cpt Crunch