I don't know what the first thing is - sorry.
As for the restaurants, we love both. However, as another poster indicated, I think you'd be hard-pressed to find any "foodies" on this board that are fans of either. We like them - we enjoy the food and atmosphere. Since Teppan Edo has been rehab'ed, I find it more spacious in terms of the actual room as well as table space in front of you to hold your plate. Coral Reef is a more unique environment - you could find a Hibachi-style place in most cities.
We make an effort to go to Teppan Edo every trip; we also try to Coral Reef at least every other trip.