I made the mistake of replacing the old Nokian WR's on my wife's minivan, having listened to some of the folks here and elsewhere that some A/S's are only a little bit worse than "real" snow tires. The WR is the only passenger A/S with the Mountain/Snowflake rating.
We bought Pilot Exalto A/S and had a chance to drive them in snow yesterday. I am an idiot: should have bought another set of the Nokian WRG2's. They are OK stopping but going and turning is poor compared to the Nokian WR.