another factor that makes les pauls so great to play is that they are pretty much flat frets and fretboard (across the width)..so u can bend a low action string without getting buzzing .
the jag and jazz have a more pronounced curve so the action can never rival that of a les paul.
musicmans are quite flat as well ..and the jumbo frets help.
the jags fretwire is quite a thin gauge and not as easy to play...imo.