I'm a little pedestrian in my taste in farce...I love British sex farce, and that general genre. So:
No Sex Please, We're British
Boeing-Boeing (LOVED the recent revival)
The Ritz (also loved the revival a couple of years ago...not a whole lot of good female roles in this one, though...)
Just a thought...would The Matchmaker be considered a farce? Lots of physical humor in that one, but a lot of word play as well...and a GREAT female monologue for Dolly Levi...
"Are you calling me a procrastibator?" Hunter, [title of show]
"Guess who's gonna get blamed for the war in Europe?" Eugene, Brighton Beach Memoirs