My favorites are Artist Point, California Grill, and Jiko. Artist Point and Jiko are very quiet and nice meals. However, for kids and for the overall experience I'd recommend California Grill. The view of the Seven Seas Lagoon, Magic Kingdom, and the fireworks is unmatched - it's really cool being able to watch the buses, boats, and monorails entering and exiting MK. The menu has something for everyone - flatbreads, sushi, steak, chicken, seafood, etc. And your 8-year old can get the kid's sushi dessert plate. That was definitely my favorite WDW dessert as a kid.