Not that i have a full featured film SLR, but i guess that the advantage of the late-model full-featured film SLR has, over its digital equivalent, is that it loads film. Ya cant shoot film in a digital camera..
But compared to a bit older manual focus and mechanical SLR we are talking about something different. Compared to those i find that "full-featured" in newer cameras almost revolting. Counting from now and one year back i have barely touched my DSLR, but my two old Chinons (Pentax-K mount) is at use almost every day. I have actually bought my last digital SLR, i wont buy one again, unless some manufacturer makes a manual focus DSLR without all those revolting features demanding a 300 page manual, features that just distracts and get in my way.