Re: New RG655 or Used Jem 7v from 1998?
For me, it would depend on how beat up the 7VWH is. 1998 one also comes with ebony fretboard which is cool. I'd prefer the 7VWH as well, as long as it's in good playable condition. Like Jono said, the 655 is more generic, although I like TZ/TV/AN combo. In fact, I like that combo more than the Evo's for bluesy stuff.
The 7VWH is going to have a thicker neck than the 655. The 1998 7VWH neck is thicker, but not as wide as more recent models I believe. So to answer your question, yes, the 655 neck is slightly closer to the more recent 7VWH's compared to the 1998 7VWH, but not by a lot. The 655 is slimmer than them both, which I like, but they're all fast playing necks when it comes down to it.