Ferrari were 1-2 with Bridgestone tires at the Indianapolis F1 race this weekend whilst the Michelins only managed a 3rd place. Last year at Indy, Michelins were failing and all the Michelin shod cars were parked.
I don't know that it matters. I have Bridgestones and I'd be just as happy with the Michelins. Tires only start to show their abilities once they are beyond 50% worn. Noise, grip and ride characteristics then become more apparent.