Here are my comments:
Day 1 - Never been to Paradiso 37 or dinner in DTD. We usually visit Wolf Gang Puck Cafe for lunch...so no real comments on this one.
Day 2 - We usually eat at Brown Derby (I prefer the signature restaurants) but would like to try Mama Melrose. It is my second choice, but never been there.
Day 3 - Epcot has the best in park restaurants. I would definitely choose this day to have dinner in a part. Each country has a restaurant and the servers are from the restaurant. I have had very good experiences at each one I have visited...Chefs de France, Le Cellier, Rose and Crown.... I would save Il Mulino for another day if you can. It gets good reviews too.
Day 4 - I have given you my comments on this one. I would go Cali Grill and see Wishes from the observation deck.
Day 5 - Never been to Yachtsman Steakhouse. It gets mixed reviews and I have seen many people not recommend it and say there are better steaks at other restaurants. I believe DHS is a boat ride to the Swan, so you might consider Il Mulino for this dinner. If you want steak, check out the menus and reviews at allears (dot) net. I believe Cali Grill has a good steak, Jiko, and most (if not all) signature restaurants.
Day 6 - many people do not stay an entire day at AK. I never have either. If you get done early, it might be at a disadvantage to have dinner plans there and lunch both. Also, AK closes earlier than the other parks. You might consider an ADR away from AK after the close time. Then, if you stay at AK all day, you can go to your dinner afterwards. If you don't want to stay at AK all day, you have another plan. If you are set on doing Yachtsman, then this could be your Il Mulino day. Otherwise, there are lots of options for dinners at the resorts and DTD. We have Rainforest Cafe's here in Texas, so not a must do for us in Orlando.
Day 7 - I always do Epcot and MK two days, so I would probably do one of them. If Epcot, I would eat in Epcot because I like many of the options there. If MK, I would eat at a resort on the monorail, because I like them all so much. I also like your plan of keeping it open so you can do your favorites and have some flexibility. There are lots of great options and restaurants. Not sure what you are leaninig towards. You are going to have a great trip.