Hey bob, the boats have similarities concerning stability. However they are completely opposite boats, which I'm sure are obvious.
The Stealth might be a bit lighter...but it's non nearly as convenient to load or carry because of it's pointed keel and handles. The PA has a much better carry handle design.
Perhaps look into the PA 12? Or maybe even an outback or adventure island? They are not as stable but great boats. Steveooo or Andy can chime in regarding the Adventure Island.
The PA isn't as big an issue as some make it to be when it comes to surf launch/landing
I'll gladly take you and help you out.