Your kids will enjoy Whispering Canyon more, although I do agree with other posters who say that your location that day (and the relative ease of getting to whichever restaurant) is the best way to guide your choice. If you and your husband are of an age where you grew up in the 50s or 60s, 50s Prime Time will be a hilarious step back in a time machine for you. If you are of, ah, a more recent vintage and didn't grow up with the TV shows or decor of that era, then it's not that you wouldn't have fun or enjoy it, but it wouldn't be as "worth it" to make the effort.