F1S or MC6.

I've used PS3 before and now tried MC6. In the dry they're both similar, in the wet I feel PS3 is still superior especially in aquaplaning resistance. Comfort wise, MC6 is pretty good, maybe slightly better than PS3 but I don't pay too much attention to this. MC6 when it came out claimed to rival PS4 but I think no cuz it's closer to the older PS3 than PS4 so PS4 is still superior for both dry and wet. One thing though I like how square the MC6 looks when mounted on rims, as if it's 1cm wider than PS3 or many other tires despite the same size. PS3/4 look more rounded.

As for Potenza RF, is this the S001? If so I never tried yet but this is very old model that was already inferior than PS3 based on various tests I read back then. RF type also will surely be harsher tire.