Right, the reason I ask is because kf095 provideed an old link to a review of the original 30 year old version.
If you do not need the shallow depth of field of f/1.4 then I would go for another copy of the Canon 35mn f/2. The IS has always been a game-changer for me.
In addition, the t-stop factor as tested by dxomark for the Canon is 2, equal to it's maximum aperture, which means it lets in the maximum amount of light. Most lenses let in less light, often a 1/3 to half a stop less light than their maximum aperture might suggest. As a result, the other 35 mm f/1.4 lenses you are looking at do not give you a full stop more light than the Canon 35 f/2 IS.
To sum up, the Canon is lightweight, modest in size, very sharp with good contrast, reasonably priced, lets in the maximum amount of light for its aperture, and has 4 stops of IS. Of course, you probably can't go wrong with any of the choices on your list.