This arguement is as old as the hills on many car forums. I've kinda come to the conclusion thats it a bit like having a slippy diff. Until you've tried a car back to back with and without one you just won't get it. Over the years I've driven many cars that are the same model on a variety of different tyres and there is a big difference. For me the economy stuff is just terrible, even dangerous in some cases. The mid range stuff is much much better and miles above the economy stuff. The high end stuff is usually a step up again over the mid range and my choice on every vehicle I personally own. But it does have to be said the premium stuff isn't night and day compared to the mid range and in some cases a good mid can match if not out perform a poor premium. This seems to be the case with some of the veds for example.
I usually plum for Michelin or Goodyears as a general rule as both have been consistently good for decades now. Subjectively I've always felt the Goodyears F1 has offered slightly better ride quality than the Michelin PS competition over the years at the expensive of outright handling response/feedback. Hence why Goodyear are now expanding the F1 range to cover more bases with tailored options.
I usually plum for Michelin or Goodyears as a general rule as both have been consistently good for decades now. Subjectively I've always felt the Goodyears F1 has offered slightly better ride quality than the Michelin PS competition over the years at the expensive of outright handling response/feedback. Hence why Goodyear are now expanding the F1 range to cover more bases with tailored options.