NONE :P
Not to start, it has to join the line LOL
Les Paul has first dibs (Mule or Cold Sweat)
Then Axis (Painkillers..........when ready :)).
JP6, as it blends piezo etc. need to play it alot and see what I think before getting into pickup replacement.
If had to guess right now I would think maybe MM or maybe oh heck..... dunno, gotta get it and find it's personality first, introduce myself and all that, get the mojo going :)
Nick