First off, different tires will yeild different results, i.e. whatever bike you have will likely need to have the suspension set for that brand of tire, as some brands have taller fronts, some have taller rears..also, if choose to go with a 190 rear, some adjustments will need to be made re: damping, and rebound, due to the tires having a much stiffer carcass.
And..the 190 is taller, so if your forks are way up through the triples, you need to set em back to stock or close to it.
Now, as for brand, it's pretty much a personal thang...I've run just about every brand, cept the newer Michillens. Out of those I tried, including the Supercorsa, but NOT the pro's, I setteled on the Bridgestones, they wear a tad quicker, but they stick Real good! I went from using the DOT BT002's to thier slicks, even still the profile of the front 002 is Nice...
I'd suggest trying as many brands as possible, then pick a brand you like. Don't forget to run the recomended air pressure..
Oh, one other thing, if you want to inquire about a certian brand, I suggest you contact that trackside vendor as oppossed to a Shop / bike dealer, trackside vendors supply racers and know more than a dealer will.