1. The Bridgestones have a bigger footprint, so presumably dry traction is better. Maybe the race car drivers can say if they have improved lap times. I have never seen a skid pad test to prove anything. They seem just as easy to break loose from a standing start. All summer performance tires are bad in cold weather. The Bridgestones are better in the cold. The Goodyears turn into hockey pucks in the cold.
2. Very much quieter, especially on concrete.
3. Slightly heavier steering feel (wider tires), but I don't notice any better feel.
4. The rears seem to be wearing faster, but I'm still on the first set so too early to tell. Our wheels are the minimum width for the rear tires. In theory, that might cause uneven wear (faster in the center). I run 28 psi to compensate.
With a wider tread section, the Bridgestones might produce more tramlining. We have good roads in Florida, so I have not noticed any tramlining.
I can't say which is better on wet roads. I've driven a lot in the rain, but I'm extremely cautious in the rain.
The Goodyears went over 200 mph for hundreds of miles. I think it's fair to say they are safe at high speeds. I have read that Goodyear certified them at 205 mph, which is the reason we have a speed limiter. IDK what testing the Bridgestones had.
Subjectively, the Bridgestones look better. They also cost a lot less.
Some have said that the Bridgestones are a more modern technology. I have not seen anything to back that claim. The rears were made for the Enzo, so that makes them older than the Goodyears, unless there have been changes over the years.
I think everyone recognizes that any new set of tires immediately feels better than the old worn out set. New Bridgestones feel better than worn out Goodyears. New Goodyears feel better than worn out Goodyears.
I still have Goodyears on one set of wheels. I'm happy with Goodyears. I'm happy with Bridgestones. I'm just happy every time I get in the GT.
My next set of tires will be Bridgestones, based on cost, noise and appearance. Unless I get a good deal on Goodyears.