Daniel in SD
(supervised)
If you look at Tire Rack's test the PS4S is better in every way including wet braking, wet cornering and wet lap time. It's definitely the best summer tire for the street. They're very comfortable but yes they're expensive and only have 300 treadwear rating.Depends on what you're looking for. If it's looking for price, longevity, and comfort, the 4S isn't optimal.
For me, I'm driving on the road and most tires do fine in dry, so I look for what works best in wet conditions. Last thing I want is to lose control or be unable to stop when I hit a puddle.
For my desired requirements, the Avid GT tires are the top in its category for me.
https://www.tirerack.com/tires/tests/chartDisplay.jsp?ttid=237
https://www.tirerack.com/tires/tests/chartDisplay.jsp?ttid=223