Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
Me, pretty much. At least, this is the case with more recent generations.
During my early teenage years or so, I remember restarting FR/LG quite a bit with friends of mine, alongside RSE I think? Really, restarting over Gen III games was kind of the thing to do between my friends and I, so I suppose FR/LG and RSE are the ones that I've replayed the most.
But as far as more recent generations go, I just don't have the patience/time to play through them more than once.