I consider myself an adventurous diner, to a point. (I won't eat organ meat, but I'm totally open to new flavors.)
However, I hated hated hated Morroco. Maybe it is because I live in the Detroit area which has a middle eastern restaurant on every corner. For whatever reason, I thought it was very boring and bland. It holds the place as my most disliked restaurant in all of WDW.
I haven't ever eaten in Germany, but it sounds like a great place to take kids because of the entertainment.
My fave place in Epcot for dinner is France - absolutley delish! My DH's fave dining memory is eating outside in Italy (I was back at the room napping). Perfect setting and perfect food. It's been a year and I am still hearing about it!
Remember, whenever you go you are still in WDW, so every place will be appropriate for kids. And every place, even icky Morroco, has hamburgers and mac-n-cheese.
To be fair, I must add that the hostess staff in Morroco were wonderful. They spoke with my DDs for quite a while and left them with little souveniers. My girls felt they had made friends for life!