We've done 1900 Park Faire twice for dinner and are going back again in May. We love it and the character interaction is great. They guys all loved the prime rib and the strawberry soup is yummy. We had great meals and service there both times.
We've eaten in Norway once for dinner and the character interaction was very good but the menu did not suit everyone in our group. We are going back there in May, but for breakfast.
We had just the opposite experience last trip. Everyone in our party really enjoyed dinner at Akershus, nobody cared for the food at 1900. (Except the strawberry soup!)
We did enjoy the step-sisters at 1900, very funny. If you want a variety of princesses, your best bet is Akershus (any meal) or CRT for breakfast/lunch. With both of these locations you get a photo package included with your meal.
If you have a big Cinderella fan, I think dinner at 1900 character wise, is the best meal.