Bridgestones are the bottom of the rung in my opinion.
They last for ever but are not well known for a lot of grip if conditions are less than ideal.
Bridgeys are also not well known for being very grippy in the wet.
Having bagged them a lot of folks use em but I don't like em one bit.
They are a very average tyre in my opinion.
There are a lot of better tyres on the market, if you want a sports touring tyre the Metzeler Z6 or Avon Azaro 45/46 ST's. These get good milage and are good in the wet and dry. They also handle better than the Bridgestones.
If you want a stickier tyre at the moment the Michelin Pilot Power would have to be one of the best for grip, handling, wear.
I havent tried the latest Diablo's or the Avon Vipers though.
my 2c worth.
Have a nosey in the tyre sticky at the top of the page. Lots newsy stuff there and also check the reviews section.
Davem