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For IQ, you're going to get the best with the 18-55, and the 55-250. The 17-85 while having some added reach, better build, and USM, doesn't even match the IQ of the kit lens at the wide end. the 18-135 suffers IQ wise at the long end too. You're better off getting 2 lenses, instead of 1 "always on" lens.