Are you traveling with kids or adults only? Most kids would prefer the food and chef show at Teppan Edo. I have enjoyed both but as an adult prefer Tokyo Dining for the food (tempura & sushi), the window table view (gorgeous view of the Lagoon and if lucky, you can catch the drum show . . . ask at check-in for a window table and if none available, politely advise that you are prepared to wait for one . . . I have never waited more than 15 mins) and the slower pace. I find Teppan Edo to be a more rushed experience with a faster table turnover while Tokyo Dining is often less busy and more serene.