Both moves are great STAB to tyranitar but which is best? Crunch is a good move of 80 base power but payback is stronger if it plays 2nd. Tyranitar's speed isn't very high to choose crunch but it isn't so terrible. So I'm currently with payback but in the question ''what is a good moveset for tyranitar'' I saw that the most people prefer crunch...
It depends. If your running a curse set, payback is the way to go. If your running a d-dance set, crunch is the way to go.
Its pretty much that simple :D
Um payback becuose it is slow