I justified the Cross Climate 2s' extra costs by the fact that it's going to be safer, they are mandatory in my area, and the fact that I'd need to store them (inconvenient and may cost otherwise) and then have them either in a separate set of extra rims, or have them reinstalled every change of fall to winter, then winter to spring.I agree, nothing beats snow tires for snow. However driving in 90+ degree heat on snow tires will wear them bald in an extremely short period and they perform very poorly in warm weather. The OP asked for all season tires for his father, perhaps he doesn't have the room to store a 2nd set of wheels/tires or just doesn't desire to change them back and forth seasonally or won't get them changed out in time or a myriad of other reasons. Hell, I have a whole different car I drive in the winter...with all season tires because I also drive it in the summer when the weather is poor or I just don't feel like spending on premium fuel.
One set to rule them all
Did I mention they look sick AF?
All-Weather tires rule (not all seasons). Unless you get heavy snow, even then I'd still reconsider depending if you live in a city or rural area