It depends Dan, I often shoot 4x5 color negatives, and occasionally 8x10. A 16x20 from a 4x5 negative and a 16x20 from a D300 look totally different, in alot of subtle and not so subtle ways. An 8x10 negative or transparency blows anything else out of the water, and it's not subtle.
Larger formats have more of a 3d look to them, more of "looking through a window" than looking at a picture. While you still have some of that look when you view them on a computer, looking at actual prints really shows the differences much more readily.
For image control, a view camera wins, and for what a used tilt/swing lens cost for an SLR, you can have full movements, and some money left over. Like anything that gives you 100% control, however, it's incumbent upon the operators skill as well.
As to convenience, digital wins hands down. I realize not everybody has a film processor sitting in their house, or a Frontier at the studio they have access to, and quite honestly if I didn't, I'd be shooting a lot less film.