Well, what I have found over this past season was that the RS3s are the best during the heat season. When they get hot, they are sticky. I have that set at the moment.
But when it is cold or rainy, forget it. Slip and slide we go.
The Direzza Star Specs on the other hand are quite nice in the wet and cold. Not bad on grip.
But the Toyos feel even better in the cold and wet over the Direzza's for me.
So, really, I have found there is no perfect all year tire. That's why some people have like 2-3 sets becuase of weather changes.
I am looking for another set of wheels and tires this year to have one set for rain and another for the heat.
I will also be sticking to my RS3s, but am anxious to see the results of the new Direzza IIs coming in February.