Only had the tempura and I thought it was good although that was a few years ago and people's tastes are different
I like the good at Tokyo Dining. I'm a somewhat cautious sushi eater lol and I don't want it for an entire meal. I've had the filet mignon, teriyaki chicken and to roppongi (tempura shrimp and scallops). All very good.
Agree with those here who have said they are quite different experiences so it's hard to say which is "better".
For us, if we have the kidlets with us, we choose Teppan Edo because they love the "show"
If it's just Jon and I we usually prefer Tokyo Dining for the sushi (and because Jon is not a huge fan of hibachi).