This will be our first
DVC stay too!
Okay, which restaurant? Well, personally, I wasn't too impressed with Prime Time 50's as far as the food goes. I can make what they serve better at home. It is a fun place to eat however. And to be fair, we've only been there once. Lots of people love it.
I thought the burgers at Sci-Fi were very good, but the tables are set up in cars, so you won't be facing your party. Two in the front and two in the back most likely...well, you have five in your party, so I don't know how they do that. Maybe they have a different arrangements for larger parties. I was also disappointed in the movies they were showing. Mostly old, cheesy sci-fi flicks.
Whispering Canyon was a lot of fun and we enjoyed the food. Set up family style, if I remember correctly. We went kind of late, around 9pm I think, so it wasn't as rowdy as I believe it can be. Think it would be most fun to go to this restaurant at dinner during peak dinner hours, where there will be the most interaction with wait staff and diners. We will probably try to do that on this trip. Esp since we are staying at VWL.
So for those reasons, I'd go with Whispering Canyon. Another bonus since it is at a resort, instead of a park, you can choose to go just about any time, rather than when you are in that particular park.
Have fun whatever you choose!
Stacy