Avedon. I become aware of LF photography in the first place because I happened by In The American West in a bookstore years ago and my breath was taken away by how *lensless* the photographs looked. Like there was just no glass between me and the subject whatsoever.
Also, I admire how he's been an 8x10 user for decades and yet it's just not about the equipment. It's always about the eyes, period.
Also, I am becoming a fan of Mark Tucker, from Nashville. He does such a great job of selective focus.