Both are very nice, although Monarch would be considered my grandparents ship, both have lobster tails on atleast one night, but we like carnivals better with lots of butter while RCCL cooks theres in lemon water(I hate lemons) my daughter also likes Carnival better and if she has a good time so will mom & dad
We are sailing on Carnival Triumph Dec 11 2004, if you have any questions please let me know or many on here have great information to share.