picking a lens depends on what are you going to shoot with it,and you have not specified that,and will assume it is a general photography one. if you pick 24-85 you will loose the wide angle power of the 17-85,and you will get no benefit over your previous one,so I suggest to ignore this choice completely,as for the other 28-135 it is a good lens,having an image stabilization,and got more focal length which will allow you to shoot more objects in a moor zoom power,and yet still have the wide angle focal length of the 24mm,but not so powerful as the 17mm, hope this will help,if you have a further inquiry ,do not hesitate to ask,be well.
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