Didn't the original PGMs have the JEM profile neck? I remember playing a PGM30 and thinking the neck felt just like my old JEM777LNG... You're correct on aesthetics though, I was mainly pointing out where you'd notice them biggest difference in performance.
Given the choice, I'd take the PGM30. They even have a blue/pink one in Japan!
I'd probably buy a used RG first, heck even a new one, since I'm not that into owning signature guitars anymore.
