For fun, here is my list. Out of these I love all but 50's.
Ohana (fun, fun, fun, a meatlovers dream come true)
Whispering Canyon Cafe ( lot's of over the top fun,good steaks, and the skillet is decent.
Biergarten (What more can you say, live polka, german buffet, and if you drink ( I don't) plenty of beer)
50's Prime Time (Also lot's of over the top fun, food is ok).
IMHO, with the kiddie's, Ohana, WCC, and 50's would be the most fun unless you go character dining.