My sweetheart, the workhorse of the new imperium:
I've a soft spot for this bird because I had an uncle who flew them in southern Europe and then, when stationed in post-war Europe, he flew the Berlin Airlift.
I'll bet that there is still somebody, somewhere, flying these bucket of bolts.
ETA: Yes, indeed, there are still revenue flights with operating DC-3 craft!
A decent list, no less.