RodS57 wrote in post #18658901
I think the lens your need will be decided by exactly what you want it to do. I bought the 15-85 in 2013. I wanted a lens that was a bit wider than the typical kit lens as well as being a bit longer (thinking 18-55 here). I like being able to change lens, I just don't want to have to do it 20 times a day. It was the only lens I found that met both conditions. I've looked at the 10-22, 10-18 and the 8-15L but imo they are too restrictive FL wise and are relegated to the 'special use' category for me.
This was/is the same scenario for me as well. I’ve never felt compelled to replace the 15-85 with any of the 18-xxx variants as it’s given fantastic results on 3 different crop bodies. I have the 10-22 for specific purposes, but it’s shot at 10mm probably 95% of the time it’s put to work. Tried the 10-18 thinking it could replace the 10-22 at a lower cost investment, but was not impressed. The Sigma 18-35 can be a potential good solution for wide’ish and fast if you get a good copy. Been through 2 copies 6 months apart. I wanted to like it, it produced beautiful images when it hit focus, but the degree and frequency of inconsistency (especially with the 2nd copy) was not tolerable.