It's impossible to state matter of factly that one tyre is better than another. Anything that governs how the car feels to drive (tyres, suspension, brakes etc) is totally subjective and therefore people need to try different things and draw their own conclusions.
As far as completely standard suspension goes, the PS4 feels superb. I like the consistency, I like the self centering strength and off centre feel, and I like the cornering grip and stability. Michelin have pulled a blinder with this tyre.
It's the best tyre I've ever tried on a VW.....and I've had lots of VWs....and lots of tyres.
Different tyres have different traits on different cars, hence why OEs fit a particular brand and model at the factory, but there's a good reason why a lot of high performance German cars come fitted with Michelins as standard.