[VIDEO]http://www.youtube.com/watch?v=ZKnuaVY-_Us&feature=related]YouTube - World of Guitar - Steve Howe[/VIDEO]
It's interesting that this guy, who's got one of the most famous guitar collections on the planet, is using modelling stuff more and more onstage. He's mentions that VG8 here, but he's using a Vetta and the Line 6 modelling guitars a lot now too...
A lot of that is practicality. A decade ago, he was still bringing along an army of guitars on Yes tours, including his ES-5 Switchmaster to use on the material from Fragile. I think the cost and hassle of doing that got to be a bit much. By contrast, on last fall's tour he used an ES-175, ES-345, Fender steel, Strat, and three acoustics (steel- and nylon-strings, and a 12-string). I can't remember whether he played a Coral Electric Sitar or used a VG-8 patch for that. That sounds like a lot, but it's much simpler than before.
He was definitely using a Vetta. But then, he's never had a definitive amp sound. He used Dual Showmans with 15" speakers in the early '70s, Fender Twins in the late '70s, and then a variety of stuff in the '80s-'90s before going back to the Twins when he rejoined Yes in '96--as a result, his sound has changed a lot over time.