I listen to more classical violin than jazz violin, but it's a stacked deck--there are so many more classical violinists to choose from and only a handful of jazzers. Still, I regard Stephane Grapelli as an important player of his time and Jean-Luc Ponty's "Aurora" is one of my favorite fusion LP's. I also enjoyed his stints with Mahavishnu Orch. #2 and the 1973 edition of the Frank Zappa Band. Anyway, you'd be hard-pressed to name a dozen jazz violinists from the last 100 years without assistance, whereas the 20th century produced a bushel of great classical violinists.