Used both the Assys and PS2's. I feel from my experience that the Assy is a better wet tyre without doubt, equal dry tyre and longer treadlife.
Had 3 PS2's suffer sidewall damage in the form of cuts from potholes, particularly when it was wet, and for this reason I would not purchase again.
So my vote is with the Assys.
For those who are sick and tired (no pun) at premium brand tyre prices, the Kumho Ecsta KU31's are worth looking at. I have run them on my M3, along with PS1 and PS2 and now Assys, and without doubt the only thing budget about them is the price, they display better wet grip than both the Mich and Goodyears, similar dry grip and good treadlife, most people just will not try becuase of the name. But loads of EVO/Scooby/M3 drivers have switched and rave over them.