Capture the moment. Moments this, Moments that. In photography, a moment is an age. You need an instant.
The difference, with portrait photography, is immense.
Yes. I use both. Digital has many advantages which ironically can also be its downfall. Film requires a different approach - slower and more considered in taking, developing and printing - but a resulting photo from a good quality medium or large format camera is a joy to behold.
The end result though, is more personal