Actually, I would have to say that my experience has been that RCCL has better food, expecially the dinners in the evening. But, I would not book a cruise by opinions of food alone! I too love to eat, and believe me you will not go hungry on any cruise lines you happen to choose.
I tend to choose Carnival over RCCL, for my own personal reasons.....and believe me everyone out there has their own personal opinions, so don't beat yourself up over whether you chose the right first cruise or not. You will enjoy every single minute of it....believe me!!