My $.02....
Had Michelins originally in 2005. Two fronts wore badly due to poor alignment from factory. Replaced them in 2006 with Toyos due to cost of Michelins (half price). In 2010, in advance of a long trip, put new Toyos all around. This time less than half price. Dealer required me to sign a waiver stating that the Toyos may not have as good (smooth)a ride as the Michelins. Not having had problems with the Toyo steering tires up to then, I signed. I have noticed no change in the handling or ride comfort. Interstate Hwy maintenance influences that more than anything and I doubt Michelins would make a difference there. I'll stick with Toyos as long as they make the right size. I plan on on a 5-6 year Cycle of replacement regardless of tire appearance. I park it out of direct sun.