I hate FOOTLOOSE and SEUSSICAL.
The stage version of SINGIN' IN THE RAIN isn't wonderful either...
You already did GUYS AND DOLLS, do something different.
Since your audience consists mostly of families and old people, CRAZY FOR YOU and 42ND STREET would be great choices. They are both very dance heavy shows, the casting is similar (though more of a male dancer for the former), and they contain insanely recognizable tunes.
If I had to choose 1, I would say 42ND STREET.
"If you are going to do something, do it well. And leave something witchy."
-Charlie Manson