which do you prefer?
Hard to say. The Embody is thermally warmer but has a better arm rest design. I prefer the seat pan on the Embody. However, I like the back on the Aeron better.
@Uofmtiger: Regarding the Eames lounge chair -- I am 6'2" and the chair is clearly designed for someone shorter than me, though I can sit in it comfortably with a pillow support. If you're 6'5", you'd definitely hate yourself if you bought the chair to sit in. I bought the chair knowing this but I don't sit in it very often, no more than 6 hours a week. I've always loved the look of the chair, so I bought it half for the art.