"Crossing Delancey" because I am a second generation Jew, too.
"Moonstruck" for the same reason.
I watch nothing but romantic comedies.They are delightful, fantastic, and the kind of real life that I need to be true.
"The American President" is good, too.
I am too damned sophisticated for slapstick like "My Man, Godfrey" or "Bringing Up Baby" but I could watch Nick and Nora for days.
I'm surprised that no one has mentioned "Houseboat".