although I do love all the ones you have mentioned already, my all time favourites would include:

South Pacific

(I'm gonna wash than man right outta my hair & Bloody Mary is the gal I love)

Gigi 

(Thank heavens for little girls &  The night they invented Champagne!)

My Fair Lady

(Just you WAIT 'enry 'iggins! & On the street where you live)

Seven Brides for Seven Brothers

(superb dance scene)

Oliver

(As long as he needs me, I know where I must beeeee)