The PointsHoarder year in review episode linked to the three hosts’ fight logs and each uses a different service:
I have not used any of them, and probably won’t start as then I would want to add historical flights and that would mean many hours wasted fiddling with it.
Flightdiary and FlightMemory present similar information, Flightdiary being more polished. OpenFlights is more spare.
Readers, which do you use and recommend? Show off your maps.