#1
So this guy is selling a Jackson Performer PS-2 and a PS-4 (Both MIJ)

And here I'm wondering which one I'll get. Interestingly, I couldn't find much information about these guitars online so I'm asking you guys.

Is there any difference between the two other than pickup layout? Like wood and other build quality?

I'm more inclined to get the PS-2 for its HSS layout but I can live with an HSH if the guitar itself was of superior quality.
#2
They're pretty much the same quality wise, they are just older discontinued Jackson. The only difference is the layout.
Gibson Thunderhorse
Jackson RR24M
B52 AT100