I know on RC they charge you for soda, certain restaurants ect, un-like disney, but what else do you have to pay for while your ON the ship? & How does it compare just in general?

My husband and I are trying to plan a 7 day vacation and were thinking a cruise would be the best option. Then someone brought up staying at an all inclusive resort. Having done neither, I’m wondering which would be the most economical and the most relaxing. We need a get away and would like to go between Thanksgiving and Christmas or the week before Thanksgiving. Thanks for any advice!