It is difficult to single out a favorite Cole Porter song... there are SO MANY fabulous songs.
Here is one of my favorites, again, from the fabulous movie DeLovely :
Night and Day
Night and day,
you are the one
Only you beneath the moon,
and under the sun
Whether near to me or far
It's no matter darlin', where you are
I think of you
Night and day
Day and Night,
why is it so
That this longing for you follows
wherever I go
In the roaring traffic's boom
In the silence of my lonely room
I think of you
Night and day
Night and day,
Under the hide of me
There's an ooh, such a hungry yearning, burning inside of me
And this torment won't be through
Till you let me spend my life making love to you
Day and Night
Night and Day!
see also The Genius of Cole Porter (1): https://steemit.com/poetry/@rejuvenation/the-genius-of-cole-porter-let-s-do-it-let-s-fall-in-love
See also The Genius of Chava Flores(1): https://steemit.com/spanish/@rejuvenation/el-genio-de-chava-flores-la-interesada-letra-y-video-en-concierto
introduction, then song starting at 2 min 13 sec