I am so close to that 180 day mark.... FINALLY!
This will be our very first WDW vacation and it will be me, DH and our 2 boys who will be 2 and 4 when we go. This is what I'm thinking and would LOVE some opinions! 
-Chef Mickey's (dinner)
-Raglan Road (dinner)
-Hollywood & Vine (lunch)
-Restaurant Marrakesh (dinner)
-Cape May Cafe (dinner)
-Le Cellier (lunch)
-Les Chefs de France (dinner)
-Boma (dinner)
-'Ohana (dinner)
We like Chef Mickey's for breakfast - it's one of our "must-do's"! However, the dinner buffet doesn't seem to get great reviews. Is this your "1st night" dinner? If so, I might keep it because eating w/ the characters would be a great way to start your trip. However, if it's not your arrival dinner, you might consider switching it to breakfast.
Raglan Road - I'm trying to decide between this one & either RF Cafe or T-Rex for our upcoming trip myself. I think my kids would like RF or T-Rex better, but Raglan Road is on the DP!
Hollywood & Vine - we had dinner here in 2005, & didn't like it. However, we haven't eaten lunch there since it became a character meal. When our youngest DS is older, I see us having breakfast here!
Restaurant Marrakesh - never eaten here, but it's on my list of places to try!
Cape May - we're trying dinner here for our first time in September! I hope it's as good as many of the reviews!
Le Cellier - LOVE!
Chefs de France - another one that's on my list to try!
Boma - yum!!! Be sure to check out the AKL while you're there!
'Ohana - we really like 'Ohana. I'm a bit worried about some recent reviews, but it's always been a fun family dinner for us.
We also like Whispering Canyon Cafe at the WL, Crystal Palace, Garden Grill, & Coral Reef. Instead of 3 World Showcase restaurants, you might think of switching one of those to either Garden Grill or Coral Reef. My kids love the character interaction at Garden Grill & love the aquarium at Coral Reef.