IMHO
Best for me is PR3
Ran PR4 but found less of a glued to the road feel
Had a PR3 GT rear and was starting to wear away the Michelin man as the weather improved, no really noticeable change in feel or grip over the ordinary ones
Now running roadtec01, finding they have taken a couple of thousand miles to get properly scrubbed in but i now have no chicken strips left. However they are nowhere near as good as the pr3 in the wet, I've had some bottom clenching moments