I go for the really old stuff. Young Frankenstein (with Gene Wilder and Marty Feldman, plus Madeline Kahn), Animal House, Auntie Mame, The Music Man, Dirty Dancing, Pretty Woman...
Sling Blade, The Hunt for Red October, The Godfather, Fiddler on the Roof, Amadeus, Airplane!, Young Frankenstein, and all of the Mel Brooks movies. Well, except for Spaceballs.
I forgot the Airplane movies, Police Academy movies, and also the Naked Gun series, and anything with Gene Wilder, especially the Mel Brooks stuff. Did you ever see The Villain with Arnold Schwartzenegger and Ann Margaret? Great spoof!