There's one glaring difference which I'll come back to once people have viewed them for themselves, but I agree the M4/3 image is 'flatter' and it's even more obvious to me now, when I first shot them I struggled to see the difference but I feel that my eye is 'keener' these days. I think it's easier to see going back and forth on flick than viewing on here so I've made them public for a while.
Alan, for the look I'm talking about DOF is certainly a very big part of it, in fact the biggest part from my experimentation. However, to get the ultimate pop all planets have to align and factors such as focal length, subject distance, POV, light etc etc. However, even with all planets arrived I still find that my shots with FF have more depth/3D to them even with shots like above that weren't shot wide open, I just have no idea why