I've used Michelin, Bridgestone and Yokohama.
My opinion is that some brands better in some things, some brands better in others. But unless you change tyres very often, I think most people will be hard-pressed to really tell the difference. Most people will adapt to whatever the performance the tyres give. Or the difference is really obvious.
I'm using Yokohama BluEarth GT AE51 now since I switched to a hybrid car. What's really difference is that the rolling resistance is really low. Can really roll for quite a distance before the car loses speed.