[Elecraft] comparing P3, LP-Pan, SDRPlay, others?

[knowkode at verizon.net]

Greetings,

I have yet to be convinced I need a panadapter for HF but its use for weak signal 6m use is what has my attention. That said, I have seen the P3 and an LP-Pan demonstrated but nothing else. I realize I am probably trying to compare apples to oranges but how do these stack up against each other? Can anything  besides the P3 be used to point and click for QSY? I think the P3 lends itself to my rudimentary comfort level with computers but I do have good tech support in my wife. That said, fire away....

Tnx,
Jim, W5QM