I thought QS was quite okay, but so is the leading driver to sweep the road first day. Sometimes it's beneficial, sometimes not. It was total bollocks when Ogier had clean for two days though and that was solely out to get Ogier and noone else (it was actually quite disgusting from the FIA to implement that).

Even with the system which let's the leading driver to do some road cleaning, the best drivers tend to end up in the battle for the title anyway. Ogier has won titles when being first on the road for a whole season.