All fantastic guitarists in their own right. Dave put together an amazing band. He writes some funky odd time stuff and his band is extremely tight live. Carter Beauford is one of the best there is. If you're into music it's impossible to not recognize the sheer talent of the entire group individually and then as a whole.
Via is my era. RR, EVH, SRV, ZW, Kirk Hammett, Yngwhie (SP? I never get that right LOL) just an incredible array of guitar hero shredders in a relatively short period of time.
Dave Mathews made his mark playing an entirely different type of music. Far more original than any of those guys. Like it or hate it it's all his own.
Just my .02 and that's about all it's worth.
