Our family fave is Sci Fi, theme is super fun and unique and you can't beat burgers, fries and shakes. It's dim on the inside to give an appearance that you are at an evening drive in movie but it's not scary and neither are the movies, they are old, cheesy black and white movies. There are "stars on the walls and what looks like mountains off in the distance. It's cool. Not all tables are cars so if you want a car you may have to wait longer for one to open up. I would say if you want to go fancy, do the Hollywood Brown Derby for great food and nice atmosphere.
Beyond that, I don't really care for any other restaurants in DHS, this also includes CS.