We did both in October 2018 and I'd recommend 1900 Park Fare. Akershus was better than I expected, but I felt like the character interaction was really rushed. Food was just okay.... I actually liked the cold buffet items better than the plated meal I ordered.
1900 Park Fare had much better food than I had expected (the butternut squash ravioli with brown butter, sage, and walnuts were delicious) and we loved the character interaction. The step sisters are the right amount of snarky to be hilarious and not scary. I enjoyed the whole dining experience much better than I thought that I would.