Unless you are doing the
DDP, I'd recommend breaking up the meals into Lunch and Breakfast, too. When we eat out only for dinner -- 1) it's more expensive and 2) it messes up your evening plans every night, even if it is EMH.
I found it better to add a late breakfast one day and make that your non-park day. Do a lunch in a theme park to help break up your touring of the park or to get a good meal earlier in the day so you can go swimming at night or to DTD or just so you can get on the rides when others are just entering the park for the evening or eating their TS. Anyway, just a thought.
Crystal Palace is probably one of the best places for breakfast. Lunch is next and dinner although good, isn't as good as their other offerings. But whichever meal you do, it'll be lots of good food.
**EDIT ** I see that you are also doing H&V ... as I mention below, CP is VERY similar to H&V. If you can skip seeing Pooh and just see him in the parks, instead, I'd suggest removing this ADR (esp if you want to add another one). We went in July to both H&V and CP and although we enjoyed them both, I found too much the same/similar and would have preferred we eat elsewhere (I like Liberty Tree Tavern for a good old fashioned Thanksgiving type meal).
Sci Fi -- I'm waiting until my youngest doesn't need a high chair anymore so we can all sit in the "car". Will your kids like watching old B&W science films? If they are expecting Toy Story clips and movies that they know, this is not for them.
Tutto vs Napoli -- I haven't tried either. Napoli is more casual. Both get good reviews.
Kona -- one of my favorite places. Very reasonably priced. I've done B-L and D and really enjoy getting a late breakfast. Stuffed french toast and the pulled pork platter for breakfast are my 2 favorites!
H&V --
We've done the lunch character buffet twice and really have enjoyed it tremendously. This meal is very similar to Crystal Palace since they have a lot of the exact same foods. I know you are doing the F! thing but if you have preschoolers, you REALLY want to do the lunch. The characters are always getting up and having everyone dance with them (June, Leo, Handy Manny and JoJo). We'll go here completely tired and then find ourselves up and dancing and clapping and just having a great old time doing the Hot Dog Dance, etc. If you don't have small kids, then this is not for you.
**EDIT** Ok, i just saw you don't have small kids but I'll keep what I wrote there in case others are interested. You should not do the lunch buffet with teens (unless they like that sort of thing)!
O'hanas -- we've been here twice for dinner and I LOVE, LOVE it!! The meats are wonderful and served to you from a huge stick/skewer and the sauces are great! They do some games (coconut races) and waiters are your "cousins". I can't wait to go back. It's also a easy little boat or monorail ride into MK. don't forget to watch the EWP, too!
Anyway, there are my thoughts.
Restaurants are all about personal taste, how tired you are, how cranky the kids are, whether you speak up if you get a fatty steak, etc.
Best wishes!!