Agree with a lot of what has already been said...
DS has tons of options, and Wolfgang Puck Express is a great choice that is fast an convenient. It's quick service so it requires no ADR, but the food is as good as some sit-down meals around property.
Hoop Dee Doo Review is such a fun experience, but one of the detractors it has is the travel time to it. Being a nonpark day eliminates this issue.
'Ohana will be our first night ADR on our next trip. I chose it because it's more mellow than some of the high energy meals we will be doing later in the trip (HDDR, CM). If my DD5 (first timer!) is worn out from the days travel, she could pass out and it would be manageable at 'Ohana. If she awake and energetic, she will enjoy the meal and then the fireworks afterwards. She was my main consideration when making first day plans. I almost did HDDR, but with as expensive as it will be for a party of 5, I wanna do it when I know everyone will enjoy it, so we'll do it later on in the trip on an off day when she can have a good nap.