Burgers, Pizza, and stuff

[seahawkfan]

I'm thinking of going on the Oasis in September as my first Royal Caribbean cruise. From what I've seen from the videos on the Oasis home page as well as the brochure I got, she looks gorgeous. I've got a few questions for you loyal RCL cruisers. The ships I'm used to don't have as much of a variety as Royal Caribbean. I know that the Freedom class and Oasis class ships have a Johnny Rockets and a Sorrentos pizza onboard, do they also serve burgers and pizza in the windjammer cafe? What restaurants are free and which ones have charges, cafe promenade, Sorrentos, and so on? Lastly, I read that advance reservations are required for shows and stuff. Is this done on the ship or on the computer? I would hate to miss out on the Aquatheatre show. Would I need a reservation for the comedy club as well? Thank you, and I'm looking forward to my first Royal Caribbean cruise.