35mm is quite possibly my favorite focal length. If my current plan for future lens purchases sees itself to fruition, depending on my available loot, I will end up with either a 17-35 or a 20-35 zoom (most likely the 20-35, and I am not interested in the 14-35, both due to cost and the vulnerable front element), and either a 28-70mm or a 35-70mm zoom (most likely the 35-70). All of these are the fixed f2.8 versions. Taking nothing else in to consideration, if you were to treat these lenses as if they were prime 35mm f2.8 lenses, which lens would you use, either specifically to one of those four, or generally (the wide lenses are better at 35mm than the midranges, or vice versa)? Since 35mm is my favorite 'decisive moment' 'f8 and be there' 'grab it and go in a hurry' focal length, I will be more interested in keeping the lens with the best 35mm quality on the camera a good bit of the time, and the direction in which I can go from there will often be of significantly less importance (unless I am doing something like a wedding, at which point versatility outweighs quality to an extent, knowing that none of these lenses are poor quality). Unfortunately, a limited budget and enough of a need for the versatility of a zoom rules out my purchase of a 35mm prime at this point, as well as a wish to wait for the rumored 35mm f1.4. Thanks! ETA: I typoed a bit there. I meant to reference the 24-70mm lens instead of the 28-70. The 28-70 is a bit too much of a beast size-wise.