I think PBA's DC-3 N136PB had something like 86,000 hours towards the end of its PBA carreer. I found a website that quotes it as now having some 91,400 hours. This was the high-time plane at the time, but of course numerous 747s have now exceeded that total, and are in 100,000+ hours range. Lots of long-range flights, day in and day out, will do that for you. There's no way something like a DC-3 can compete with that kind of flying pattern. On the other hand, although I have no idea how many cycles, N136PB has accumulated, I would bet it surely has many many more than any 747.