For me, it comes down to the type of food that you want.
When I look at Sci Fi, the menu is mainly made up of some type of a sandwich or burger as your entree. There are a few Non-sandwich/burger type of options ( like chicken or salmon pasta ) but you're pretty much having a better version of the standard Burgers that you can get at the counter service restaurants outside ( which I will be tired of by the time we get to HS ).
But when you look at the menu for Prime Time 50s cafe, it's more in line with having comfort food as your entree options that aren't considered to be a Sandwich or burger of some sort.
Obviously, there are other factors to deciding......like atmosphere of sitting at Drive-In theater or the enjoyment of the "show" that the "aunts and Uncles" there put on for you at the 50s Prime Time Cafe.
For me, I'd pick 50s Prime Time Cafe primarily because I don't want to eat more burgers or some type of a sandwich s for dinner ( which I am sure that I will be doing throughout the entire trip ). I'd prefer eating something a little different, as in a meal that I can't eat with my hands but with a fork and knife. I'm not trying to be snobby here, but trying to illustrate that I'd prefer to eat something different compared to what I will likely be eating for the duration of the trip.
Despite that reasoning, I can tell you that I decided to go with Sci Fi Drive restaurant for my next trip to HS. We're not going there for the food but only because of my daughter. For the 3 or 4 times that we have taken her to DW, she asked why we never go to Sci Fi Drive In Restaurant. My reasons was cuz I didn't think that the food was all that great or different the 2 times that we went there before she was born. But now, I've booked dinner reservations there just because she hasn't gone there and wanted to see what it's like.
