I'd first think of Mike McCallum, in that he would stand right in front of his opponent and yet still be very difficult to hit. Charley Burley, at least when seen from the only footage of him was the same way. He didn't have to dance circles in order to stay out of harms way.

I guess you could also argue that James Toney is similar. At least when regarding their stance, and those little dips and bends that often an opponent overreach and miss by a mile.