Glad to see you're trying some new eating venues. You'll be pleasantly surprised at the quality of food at Jiko's and Akershus. Akershus is a little more understated, but the more you try the different items, the quality and freshness of the food grows on you. You'll also appreciate the usually quiet atmosphere, semi-formal without being stuffy. And the servers are very friendly and efficient.
While you're at it, if you want a real treat, and still have one more dinner to schedule, don't miss Boma at the Animal Kingdom Lodge. Not only is the food quality and variety top-notch, but the servers and chefs are very helpful and knowledgeable. They'll guide you through any and all of the unique dishes, telling you about the ingredients and especially what type of taste to expect. Most all the dishes are flavorful, but not too spicy. There are different stations with each one having a multitude of selections. Don't miss any of them. And the desserts aren't too shabby either. Boma rocks!
The important thing to remember is that at Akershus and Boma the atmosphere and employees help you to relax and enjoy the experience. When you are seated, take a deep breath and enjoy the surroundings. Then, while the server is getting your liquid refreshments, take a walk around, check out the food selections and stations so that you have a reasonable idea of what to try first, and then enjoy.