DxOMark: Is the 75 1.8 the best m43 lens Available?

The other is the new Sigma 35mm f1.4.  I own the Olympus 75mm f1.8 and can clearly attest to its amazing sharpness on the Olympus OM-D EM-5. I have been evaluating both lenses in Lenstips, DxO Mark and others.  From these reviews it is difficult to tell which lens is the sharpest with the highest IQ.  However, it is very clear that no other lenses are their equal.

I am seriously considering getting the Sigma 35mm f1.4 for my Canon system.  However, Canon does not have in-camera IS which limits the Sigma's effect somewhat.  This is a major reason I started to get into the Olympus system.  Olympus is one of only 3 cameras with in-camera IS.  The other two are Sony alpha and Pentax DSLR K line.  I thought about going with Sony Alpha instead of Olympus but the small size advantage of Olympus (so I could get in-camera IS with the Sigma 35mm f1.4) ,  and the questionable future of Sony alpha (they are not putting in-camera IS in their NEX system) made y decision easy.  Not to mention Olympus's willingness to allow their engineers to be creative and make major advances.