When I worked for SIA logging sectors and landing was critical for FOs working their way to wards qualifications for command, it wasn't just hours.
The A310 guys could get the required sectors/landings in a much, much shorter time than a B744 FO, for example, whilst the B744 FO could get the hours easily.
Got called to the office once, "Why have you allowed yourself to go out of recency, no landings for over a month?", "Not so" said I, as I'd done two landing on my last four sector block, SIN-AMS-JFK and back. Turned out the FO had regularly been waiting for the captain to sign the voyage report and then out came the white stuff and he carefully awarded himself the sectors. Cost him very dearly!