sigh. damn tire threads. you realize, every brand, has specific riding characteristics. what kinda riding do you do. do you like controlled or squirrely. do you like a tire that moves a lot or a little. are you changing your suspension between brands so that its set properly for the new tires. is your suspension even set properly for the tires you do have.
personally, i prefer dunlops. because of the turn in profile, the drop to the side quick and love to be there, they hold like a rail and they don't move cuz of the stiff carcass and they're easily controllable when sliding. i don't like pirelli's because they wobble and give a lot and don't drop into corners as well but they give more and you'll feel em moving under ya. some riders like that. i, am not one of those riders.