Thanks for sharing Sony Alpha 100 performed best for in-body IS with 2-3 stops improvement. Nikon 18-200 VR (3-4 stops), Canon 70-200 F4L IS (2.5-3.5 stops) and Canon 17-85 IS (3 stops) are the best among the lenses tested.
my 2cents is that this comparison serves no practical purpose other than what others said, marketing purpose. if i am buying a new system i am not going to skew my choices in favour for something that best compensates for my wobbly hands.
Honestly, I doubt there will ever be a conclusive result to which kind of image stabilization works better. In the case of this test, the results are actually not very useful at all. 2-3.5 stops difference? The fact that there's a range of values means that the results are very subjective. Also, how do you judge a stabilized image at 2 stops down to be sufficiently blur-free to be acceptably blur-free?
that's why i thought they should have provided a clearer description of their test. When I tried taking a picture with IS on, it seems to me that even when IS is on, the image still looks blur at 1 stop slower shutter speed.